Publications of Ilya Usoskin

A list of publications authored or co-authored by Ilya Usoskin, derived from the SAO/NASA Astrophysics Data System (ADS). The number in brackets after each title indicates the number of citations that the paper has received.

Orcid ID: 0000-0001-8227-9081

List of publications ordered by citations
Number of papers: 399 (refereed: 279)
No. of citations: 14739
First author papers: 107 (refereed: 71)

2026

1. Reduced Geomagnetic Shielding During the Laschamps Excursion and Its Impact on Cosmic-Ray-Induced Atmospheric Radiation [0]
   Larsen, N., Usoskin, I., Mishev, A., Koldobskiy, S. & Väisänen, P., Journal of Geophysical Research (Space Physics), 131, e2025JA034820

2025

1. ¹⁴C-Based Sunspot Numbers for the Last Millennium Encompass the Full Range of Variability: Extreme Value Theory [1]
   Acero, F. J., Carrasco, V. M. S., Gallego, M. C., Usoskin, I. G. & Vaquero, J. M., Solar Physics, 300, 50
2. Assessment of sunspot number cross-calibration approaches [3]
   Chatzistergos, Theodosios, Krivova, Natalie A., Sundermann, Hannah & Usoskin, Ilya G., A&A, 699, A157
3. New SOCOL:14C-Ex model reveals that the Late-Glacial radiocarbon spike in 12350 BC was caused by the record-strong extreme solar storm [2]
   Golubenko, Kseniia, Usoskin, Ilya, Rozanov, Eugene & Bard, Edouard, Earth and Planetary Science Letters, 661, 119383
4. Solar flares versus solar energetic particle events: Probabilistic projections to extreme events [1]
   Koldobskiy, Sergey, Usoskin, Ilya, Vasilyev, Valeriy & Shapiro, Alexander I., A&A, 702, A195
5. Radiocarbon monoxide indicates increasing atmospheric oxidizing capacity [6]
   Morgenstern, Olaf, Moss, Rowena, Manning, Martin, Zeng, Guang, Schaefer, Hinrich, Usoskin, Ilya, Turnbull, Jocelyn, Brailsford, Gordon, Nichol, Sylvia & Bromley, Tony, Nature Communications, 16, 249
6. Wandering of the auroral oval 41,000 years ago [2]
   Mukhopadhyay, Agnit, Panovska, Sanja, Garvey, Raven, Liemohn, Michael W., Ganjushkina, Natalia, Brenner, Austin, Usoskin, Ilya, Balikhin, Mikhail & Welling, Daniel T., Science Advances, 11, eadq7275
7. The High-Energy Protons of the Ground Level Enhancement (GLE74) Event on 11 May 2024 [9]
   Papaioannou, A., Mishev, A., Usoskin, I., Heber, B., Vainio, R., Larsen, N., Jarry, M., Rouillard, A. P., Talebpour Sheshvan, N., Laurenza, M., Dumbović, M., Vasalos, G., Gieseler, J., Koldobskiy, S., Raukunen, O., Palmroos, C., Hörlöck, M., Köberle, M., Wimmer-Schweingruber, R. F., Anastasiadis, A., Kühl, P. & Lavasa, E., Solar Physics, 300, 73
8. Ground-Level Enhancement of 8 June 2024 (GLE 75) Caused by Solar Energetic Particles [4]
   Poluianov, Stepan, Mishev, Alexander, Kryakunova, Olga, Seifullina, Botakoz, Nikolayevskiy, Nikolay & Usoskin, Ilya, Solar Physics, 300, 113
9. Sunspot cycles for the first millennium BC reconstructed from radiocarbon [6]
   Usoskin, I., Chatzistergos, T., Solanki, S. K., Krivova, N., Kovaltsov, G., Brehm, N., Christl, M. & Wacker, L., A&A, 698, A182
10. Simulation of Galactic Cosmic Ray Proton Fluxes With the Daily Modulation Parameter: Validation With AMS-02 Data for 2011─2019 [2]
    Väisänen, Pauli, Bertucci, Bruna, Tomassetti, Nicola, Orcinha, Miguel, Usoskin, Ilya & Koldobskiy, Sergey, Journal of Geophysical Research (Space Physics), 130, e2025JA033805
11. Simulation of Galactic cosmic ray proton fluxes with the daily modulation potential: Validation with AMS02 data for 2011-2019 [0]
    Väisänen, Pauli Kalervo, Bertucci, Bruna, Tomassetti, Nicola, Orcinha, Miguel, Usoskin, Ilya G. & Koldobskiy, Sergey A., essoar.173532496

2024

1. Towards The Definition Of A Solar Forcing Dataset For Cmip7 [11]
   Funke, Bernd, Dudok de Wit, Thierry, Ermolli, Ilaria, Haberreiter, Margit, Kinnison, Doug, Marsh, Daniel, Nesse, Hilde, Seppälä, Annika, Sinnhuber, Miriam & Usoskin, Ilya, Geoscientific Model Development, 17, 1217
2. New Anisotropic Cosmic-Ray Enhancement (ACRE) Event on 5 November 2023 Due to Complex Heliospheric Conditions [2]
   Gil, Agnieszka, Asvestari, Eleanna, Mishev, Alexandar, Larsen, Nicholas & Usoskin, Ilya, Solar Physics, 299, 97
3. Full Modeling and Practical Parameterization of Cosmogenic ¹⁰Be Transport for Cosmic-Ray Studies: SOCOL-AERv2-BE Model [1]
   Golubenko, K., Rozanov, E., Kovaltsov, G., Baroni, M., Sukhodolov, T. & Usoskin, I., Journal of Geophysical Research (Space Physics), 129, e2024JA032504
4. Revision of the strongest solar energetic particle event of 23 February 1956 (GLE #5) based on the rediscovered original records [5]
   Hayakawa, Hisashi, Koldobskiy, Sergey, Mishev, Alexander, Poluianov, Stepan, Gil, Agnieszka, Usoskina, Inna & Usoskin, Ilya, A&A, 684, A46
5. Extreme solar storms and the quest for exact dating with radiocarbon [7]
   Heaton, T. J., Bard, E., Bayliss, A., Blaauw, M., Bronk Ramsey, C., Reimer, P. J., Turney, C. S. M. & Usoskin, I., Nature, 633, 306
6. Spectra and Anisotropy of Solar Energetic Protons During GLE #65 on 28 October, 2003 and GLE #66 on 29 October, 2003 [7]
   Mishev, Alexander L., Koldobskiy, Sergey A., Larsen, Nicholas & Usoskin, Ilya G., Solar Physics, 299, 24
7. A Geomagnetic Estimate of Heliospheric Modulation Potential over the Last 175 Years [3]
   Owens, Mathew J., Barnard, Luke A., Muscheler, Raimund, Herbst, Konstantin, Lockwood, Mike, Usoskin, Ilya & Asvestari, Eleanna, Solar Physics, 299, 84
8. Updated model of cosmic-ray-induced ionization in the atmosphere (CRAC:CRII_v3): Improved yield function and lookup tables [4]
   Usoskin, I. G., Kovaltsov, G. A. & Mishev, A. L., Journal of Space Weather and Space Climate, 14, 20
9. Transient Offset in ¹⁴C After the Carrington Event Recorded by Polar Tree Rings [7]
   Uusitalo, Joonas, Golubenko, Kseniia, Arppe, Laura, Brehm, Nicolas, Hackman, Thomas, Hayakawa, Hisashi, Helama, Samuli, Mizohata, Kenichiro, Miyake, Fusa, Mäkinen, Harri, Nöjd, Pekka, Tanskanen, Eija, Tokanai, Fuyuki, Rozanov, Eugene, Wacker, Lukas, Usoskin, Ilya & Oinonen, Markku, Geophysical Research Letters, 51, e2023GL106632
10. Sun-like stars produce superflares roughly once per century [25]
    Vasilyev, Valeriy, Reinhold, Timo, Shapiro, Alexander I., Usoskin, Ilya, Krivova, Natalie A., Maehara, Hiroyuki, Notsu, Yuta, Brun, Allan Sacha, Solanki, Sami K. & Gizon, Laurent, Science, 386, 1301

2023

1. Long-Term Modulation of Solar Cycles [48]
   Biswas, Akash, Karak, Bidya Binay, Usoskin, Ilya & Weisshaar, Eckhard, Space Science Reviews, 219, 19
2. Impact of chlorine ion chemistry on ozone loss in the middle atmosphere during very large solar proton events [2]
   Borthakur, Monali, Sinnhuber, Miriam, Laeng, Alexandra, Reddmann, Thomas, Braesicke, Peter, Stiller, Gabriele, von Clarmann, Thomas, Funke, Bernd, Usoskin, Ilya, Maik Wissing, Jan & Yakovchuk, Olesya, Atmospheric Chemistry & Physics, 23, 12985
3. Recalibration of the Sunspot-Number: Status Report [72]
   Clette, F., Lefèvre, L., Chatzistergos, T., Hayakawa, H., Carrasco, V. M. S., Arlt, R., Cliver, E. W., Dudok de Wit, T., Friedli, T. K., Karachik, N., Kopp, G., Lockwood, M., Mathieu, S., Muñoz-Jaramillo, A., Owens, M., Pesnell, D., Pevtsov, A., Svalgaard, L., Usoskin, I. G., van Driel-Gesztelyi, L. & Vaquero, J. M., Solar Physics, 298, 44
4. Long-term forcing of the Sun's coronal field, open flux, and cosmic ray modulation potential during grand minima, maxima, and regular activity phases by the solar dynamo mechanism [16]
   Dash, Soumyaranjan, Nandy, Dibyendu & Usoskin, Ilya, MNRAS, 525, 4801
5. A Comparative Study of Ground-level Enhancement Events of Solar Energetic Particles [9]
   Kocharov, Leon, Mishev, Alexander, Riihonen, Esa, Vainio, Rami & Usoskin, Ilya, ApJ, 958, 122
6. Multiproxy Reconstructions of Integral Energy Spectra for Extreme Solar Particle Events of 7176 BCE, 660 BCE, 775 CE, and 994 CE [20]
   Koldobskiy, Sergey, Mekhaldi, Florian, Kovaltsov, Gennady & Usoskin, Ilya, Journal of Geophysical Research (Space Physics), 128, e2022JA031186
7. A New Open-Source Geomagnetosphere Propagation Tool (OTSO) and Its Applications [23]
   Larsen, Nicholas, Mishev, Alexander & Usoskin, Ilya, Journal of Geophysical Research (Space Physics), 128, e2022JA031061
8. Solar Cycle Observations [22]
   Norton, Aimee, Howe, Rachel, Upton, Lisa & Usoskin, Ilya, Space Science Reviews, 219, 64
9. Effects of Global Geomagnetic Field Variations Over the Past 100,000 Years on Cosmogenic Radionuclide Production Rates in the Earth's Atmosphere [7]
   Panovska, Sanja, Poluianov, Stepan, Gao, Jiawei, Korte, Monika, Mishev, Alexander, Shprits, Yuri Y. & Usoskin, Ilya, Journal of Geophysical Research (Space Physics), 128, e2022JA031158
10. The impact of an extreme solar event on the middle atmosphere: a case study [4]
    Reddmann, Thomas, Sinnhuber, Miriam, Wissing, Jan Maik, Yakovchuk, Olesya & Usoskin, Ilya, Atmospheric Chemistry & Physics, 23, 6989
11. Solar cycles reconstructed over the last millennium: Do Waldmeier and Gnevysev-Ohl rules work? [3]
    Similä, Markus & Usoskin, Ilya, The Era of Multi-Messenger Solar Physics (Editors: Cauzzi, Gianna & Tritschler, Alexandra), IAU Symposium, 372, p. 70
12. A history of solar activity over millennia [109]
    Usoskin, Ilya G., Living Reviews in Solar Physics, 20, 2
13. Revised Reconstruction of the Heliospheric Modulation Potential for 1964-2022 [14]
    Väisänen, Pauli, Usoskin, Ilya, Kähkönen, Riikka, Koldobskiy, Sergey & Mursula, Kalevi, Journal of Geophysical Research (Space Physics), 128, e2023JA031352

2022

1. Tree-rings reveal two strong solar proton events in 7176 and 5259 BCE [39]
   Brehm, Nicolas, Christl, Marcus, Knowles, Timothy D. J., Casanova, Emmanuelle, Evershed, Richard P., Adolphi, Florian, Muscheler, Raimund, Synal, Hans-Arno, Mekhaldi, Florian, Paleari, Chiara I., Leuschner, Hanns-Hubert, Bayliss, Alex, Nicolussi, Kurt, Pichler, Thomas, Schlüchter, Christian, Pearson, Charlotte L., Salzer, Matthew W., Fonti, Patrick, Nievergelt, Daniel, Hantemirov, Rashit, Brown, David M., Usoskin, Ilya & Wacker, Lukas, Nature Communications, 13, 1196
2. Zonal Mean Distribution of Cosmogenic Isotope (⁷Be, ¹⁰Be, ¹⁴C, and ³⁶Cl) Production in Stratosphere and Troposphere [16]
   Golubenko, K., Rozanov, E., Kovaltsov, G. & Usoskin, I., Journal of Geophysical Research (Atmospheres), 127, e2022JD036726
3. Effective Energy of Cosmogenic Isotope (¹⁰Be, ¹⁴C and ³⁶Cl) Production by Solar Energetic Particles and Galactic Cosmic Rays [11]
   Koldobskiy, Sergey, Usoskin, Ilya & Kovaltsov, Gennady A., Journal of Geophysical Research (Space Physics), 127, e29919
4. Multiproxy reconstructions of integral energy spectra for extreme solar particle events of 7176 BCE, 660 BCE, 775 CE and 994 CE [0]
   Koldobskiy, Sergey A., Mekhaldi, Florian, Kovaltsov, Gennady A. & Usoskin, Ilya G., essoar.10512946
5. A New Open-source Geomagnetosphere propagation tool (OTSO) and its applications [0]
   Larsen, Nicholas, Mishev, Alexander L. & Usoskin, Ilya G., essoar.10512572
6. The first ground-level enhancement of solar cycle 25 on 28 October 2021 [55]
   Papaioannou, A., Kouloumvakos, A., Mishev, A., Vainio, R., Usoskin, I., Herbst, K., Rouillard, A. P., Anastasiadis, A., Gieseler, J., Wimmer-Schweingruber, R. & Kühl, P., A&A, 660, L5
7. Dendrochronology and Radiocarbon Dating [6]
   Pearson, Charlotte L., Leavitt, Steven W., Kromer, Bernd, Solanki, Sami K. & Usoskin, Ilya, Radiocarbon, 64, 569
8. Annual integral solar proton fluences for 1984-2019 [6]
   Raukunen, O., Usoskin, I., Koldobskiy, S., Kovaltsov, G. & Vainio, R., A&A, 665, A65
9. NEMESIS setup for Indirect Detection of WIMPs [5]
   Trzaska, W. H., Barzilov, A., Enqvist, T., Jedrzejczak, K., Joutsenvaara, J., Kasztelan, M., Kotavaara, O., Kuusiniemi, P., Loo, K. K., Orzechowski, J., Puputti, J., Slupecki, M., Szabelski, J., Usoskin, I. & Ward, T. E., Nuclear Instruments and Methods in Physics Research A, 1040, 167223

2021

1. Application of CCM SOCOL-AERv2-BE to cosmogenic beryllium isotopes: description and validation for polar regions [11]
   Golubenko, Kseniia, Rozanov, Eugene, Kovaltsov, Gennady, Leppänen, Ari-Pekka, Sukhodolov, Timofei & Usoskin, Ilya, Geoscientific Model Development, 14, 7605
2. Ground Level Enhancement Events: Interplanetary Protons versus Protons Interacting at the Sun. [0]
   Kocharov, Leon, Usoskin, Ilya & Mishev, Alexander, essoar.10509182
3. Multiple Sources of Solar High-energy Protons [20]
   Kocharov, Leon, Omodei, Nicola, Mishev, Alexander, Pesce-Rollins, Melissa, Longo, Francesco, Yu, Sijie, Gary, Dale E., Vainio, Rami & Usoskin, Ilya, ApJ, 915, 12
4. New reconstruction of event-integrated spectra (spectral fluences) for major solar energetic particle events [39]
   Koldobskiy, S., Raukunen, O., Vainio, R., Kovaltsov, G. A. & Usoskin, I., A&A, 647, A132
5. Modelling the evolution of the Sun's open and total magnetic flux [22]
   Krivova, N. A., Solanki, S. K., Hofer, B., Wu, C.-J., Usoskin, I. G. & Cameron, R., A&A, 650, A70
6. Rapid Auroral Wandering During the Laschamps Event [0]
   Mukhopadhyay, Agnit, Panovska, Sanja, Liemohn, Michael, Ganushkina, Natalia, Usoskin, Ilya, Balikhin, Michael & Welling, Daniel, essoar.10509349
7. High Altitude Polar NM With the New DAQ System as a Tool to Study Details of the Cosmic Ray Induced Nucleonic Cascade [4]
   Similä, Markus, Usoskin, Ilya, Poluianov, Stepan, Mishev, Alexander, Kovaltsov, Gennady A. & Strauss, Du Toit, Journal of Geophysical Research (Space Physics), 126, e28959
8. Robustness of Solar-Cycle Empirical Rules Across Different Series Including an Updated Active-Day Fraction (ADF) Sunspot Group Series [27]
   Usoskin, Ilya, Kovaltsov, Gennady & Kiviaho, Wilma, Solar Physics, 296, 13
9. Mind the Gap: New Precise ¹⁴C Data Indicate the Nature of Extreme Solar Particle Events [24]
   Usoskin, Ilya G. & Kovaltsov, Gennady A., Geophysical Research Letters, 48, e94848
10. Seven Decades of Neutron Monitors (1951-2019): Overview and Evaluation of Data Sources [29]
    Väisänen, Pauli, Usoskin, Ilya & Mursula, Kalevi, Journal of Geophysical Research (Space Physics), 126, e28941

2020

1. Spectral characteristic of mid-term quasi-periodicities in sunspot data [19]
   Frick, P., Sokoloff, D., Stepanov, R., Pipin, V. & Usoskin, I., MNRAS, 491, 5572
2. Natural Sources of Ionization and Their Impact on Atmospheric Electricity [22]
   Golubenko, K., Rozanov, E., Mironova, I., Karagodin, A. & Usoskin, I., Geophysical Research Letters, 47, e88619
3. Big Data Processing and Modeling in Solar Physics [0]
   Huang, X., Usoskin, I., Zhang, L. Y. & Wang, H. N., Advances in Astronomy, 2020, 6967925
4. Interplanetary Protons versus Interacting Protons in the 2017 September 10 Solar Eruptive Event [22]
   Kocharov, Leon, Pesce-Rollins, Melissa, Laitinen, Timo, Mishev, Alexander, Kühl, Patrick, Klassen, Andreas, Jin, Meng, Omodei, Nicola, Longo, Francesco, Webb, David F., Cane, Hilary V., Heber, Bernd, Vainio, Rami & Usoskin, Ilya, ApJ, 890, 13
5. Updated Neutron-Monitor Yield Function: Bridging Between In Situ and Ground-Based Cosmic Ray Measurements [56]
   Mishev, Alexander L., Koldobskiy, Sergey A., Kovaltsov, Gennady A., Gil, Agnieszka & Usoskin, Ilya G., Journal of Geophysical Research (Space Physics), 125, e27433
6. A New Full 3-D Model of Cosmogenic Tritium ³H Production in the Atmosphere (CRAC:3H) [10]
   Poluianov, S. V., Kovaltsov, G. A. & Usoskin, I. G., Journal of Geophysical Research (Atmospheres), 125, e2020JD033147
7. Revisited Reference Solar Proton Event of 23 February 1956: Assessment of the Cosmogenic-Isotope Method Sensitivity to Extreme Solar Events [44]
   Usoskin, Ilya G., Koldobskiy, Sergey A., Kovaltsov, Gennady A., Rozanov, Eugene V., Sukhodolov, Timofei V., Mishev, Alexander L. & Mironova, Irina A., Journal of Geophysical Research (Space Physics), 125, e27921

2019

1. Properties of Cosmic Helium Isotopes Measured by the Alpha Magnetic Spectrometer [57]
   Aguilar, M., Ali Cavasonza, L., Ambrosi, G., Arruda, L., Attig, N., Bachlechner, A., Barao, F., Barrau, A., Barrin, L., Bartoloni, A., Bașeǧmez-du Pree, S., Battiston, R., Becker, U., Behlmann, M., Beischer, B., Berdugo, J., Bertucci, B., Bindi, V., de Boer, W., Bollweg, K., Borgia, B., Boschini, M. J., Bourquin, M., Bueno, E. F., Burger, J., Burger, W. J., Cai, X. D., Capell, M., Caroff, S., Casaus, J., Castellini, G., Cervelli, F., Chang, Y. H., Chen, G. M., Chen, H. S., Chen, Y., Cheng, L., Chou, H. Y., Choutko, V., Chung, C. H., Clark, C., Coignet, G., Consolandi, C., Contin, A., Corti, C., Cui, Z., Dadzie, K., Dai, Y. M., Datta, A., Delgado, C., Della Torre, S., Demirköz, M. B., Derome, L., Di Falco, S., Di Felice, V., Díaz, C., Dimiccoli, F., von Doetinchem, P., Dong, F., Donnini, F., Duranti, M., Egorov, A., Eline, A., Feng, J., Fiandrini, E., Fisher, P., Formato, V., Galaktionov, Y., Gámez, C., García-López, R. J., Gargiulo, C., Gast, H., Gebauer, I., Gervasi, M., Giovacchini, F., Gómez-Coral, D. M., Gong, J., Goy, C., Grabski, V., Grandi, D., Graziani, M., Guo, K. H., Haino, S., Han, K. C., He, Z. H., Hsieh, T. H., Huang, H., Huang, Z. C., Incagli, M., Jang, W. Y., Jia, Yi, Jinchi, H., Kanishev, K., Khiali, B., Kim, G. N., Kirn, Th., Konyushikhin, M., Kounina, O., Kounine, A., Koutsenko, V., Kulemzin, A., La Vacca, G., Laudi, E., Laurenti, G., Lazzizzera, I., Lebedev, A., Lee, H. T., Lee, S. C., Li, J. Q., Li, Q., Li, T. X., Li, Z. H., Light, C., Lin, C. H., Lippert, T., Liu, Z., Lu, S. Q., Lu, Y. S., Luebelsmeyer, K., Luo, F., Luo, J. Z., Luo, Xi, Lyu, S. S., Machate, F., Mañá, C., Marín, J., Martin, T., Martínez, G., Masi, N., Maurin, D., Menchaca-Rocha, A., Meng, Q., Mo, D. C., Molero, M., Mott, P., Mussolin, L., Nelson, T., Ni, J. Q., Nikonov, N., Nozzoli, F., Oliva, A., Orcinha, M., Palermo, M., Palmonari, F., Paniccia, M., Pashnin, A., Pauluzzi, M., Pensotti, S., Phan, H. D., Plyaskin, V., Poireau, V., Poluianov, S., Popkow, A., Qi, X. M., Qin, X., Qu, Z. Y., Quadrani, L., Rancoita, P. G., Rapin, D., Reina Conde, A., Rosier-Lees, S., Rozhkov, A., Rozza, D., Sagdeev, R., Schael, S., Schmidt, S. M., Schulz von Dratzig, A., Schwering, G., Seo, E. S., Shan, B. S., Shi, J. Y., Siedenburg, T., Solano, C., Song, J. W., Sun, Z. T., Tacconi, M., Tang, X. W., Tang, Z. C., Tian, J., Ting, Samuel C. C., Ting, S. M., Tomassetti, N., Torsti, J., Tüysüz, C., Urban, T., Usoskin, I., Vagelli, V., Vainio, R., Valente, E., Valtonen, E., Vázquez Acosta, M., Vecchi, M., Velasco, M., Vialle, J. P., Wang, L. Q., Wang, N. H., Wang, Q. L., Wang, X., Wang, X. Q., Wang, Z. X., Wei, J., Weng, Z. L., Wu, H., Xiong, R. Q., Xu, W., Yan, Q., Yang, Y., Yi, H., Yu, Y. J., Yu, Z. Q., Zannoni, M., Zeissler, S., Zhang, C., Zhang, F., Zhang, J. H., Zhang, Z., Zhao, F., Zheng, Z. M., Zhuang, H. L., Zhukov, V., Zichichi, A., Zimmermann, N., Zuccon, P. & AMS Collaboration, Physical Review Letters, 123, 181102
2. In Situ Data and Effect Correlation During September 2017 Solar Particle Event [45]
   Jiggens, P., Clavie, C., Evans, H., O'Brien, T. P., Witasse, O., Mishev, A. L., Nieminen, P., Daly, E., Kalegaev, V., Vlasova, N., Borisov, S., Benck, S., Poivey, C., Cyamukungu, M., Mazur, J., Heynderickx, D., Sandberg, I., Berger, T., Usoskin, I. G., Paassilta, M., Vainio, R., Straube, U., Müller, D., Sánchez-Cano, B., Hassler, D., Praks, J., Niemelä, P., Leppinen, H., Punkkinen, A., Aminalragia-Giamini, S. & Nagatsuma, T., Space Weather, 17, 99
3. Cosmogenic Isotopes as Proxies for Solar Energetic Particles [0]
   Jull, T., Baroni, M., Feinberg, A., Kovaltsov, G., Mekhaldi, F., Muscheler, R., Poluianov, S., Rozanov, E., Sukhodolov, T. & Usoskin, I. G., Extreme Solar Particle Storms (Editors: Miyake, Fusa, Usoskin, Ilya & Poluianov, Stepan), p.4
4. Validation of the neutron monitor yield functions using data from AMS-02 and PAMELA experiments, 2006-2017 [0]
   Koldobskiy, S., Bindi, V., Corti, C., Kovaltsov, G. & Usoskin, I., 36th International Cosmic Ray Conference (ICRC2019), International Cosmic Ray Conference, 36, p. 1094
5. A neutron monitor as an integral spectrometer for GLE analysis: Effective rigidity and reassessment of integral fluxes [0]
   Koldobskiy, S., Mishev, A., Kovaltsov, G. & Usoskin, I., 36th International Cosmic Ray Conference (ICRC2019), International Cosmic Ray Conference, 36, p. 1093
6. Validation of the Neutron Monitor Yield Function Using Data From AMS-02 Experiment, 2011-2017 [45]
   Koldobskiy, Sergey A., Bindi, Veronica, Corti, Claudio, Kovaltsov, Gennady A. & Usoskin, Ilya G., Journal of Geophysical Research (Space Physics), 124, 2367
7. New Method of Assessment of the Integral Fluence of Solar Energetic (> 1 GV Rigidity) Particles from Neutron Monitor Data [20]
   Koldobskiy, Sergey A., Kovaltsov, Gennady A., Mishev, Alexander L. & Usoskin, Ilya G., Solar Physics, 294, 94
8. What Can Be Learned from Modern Data? [2]
   Kusano, K., Cliver, E., Hayakawa, H., Kovaltsov, G. A. & Usoskin, I. G., Extreme Solar Particle Storms (Editors: Miyake, Fusa, Usoskin, Ilya & Poluianov, Stepan), p.2
9. Spectra of extreme GLEs derived using neutron monitor network records [0]
   Mishev, A. & Usoskin, I., 36th International Cosmic Ray Conference (ICRC2019), International Cosmic Ray Conference, 36, p. 1124
10. Usage of the global NM network for assessment of the radiation exposure at flight altitudes [0]
    Mishev, A. & Usoskin, I., 36th International Cosmic Ray Conference (ICRC2019), International Cosmic Ray Conference, 36, p. 1123
11. The upgraded GLE database includes assessment of radiation exposure at flight altitudes [1]
    Mishev, A., Usoskin, I., Tuohino, S. & Ibragimov, A., Journal of Physics Conference Series, Journal of Physics Conference Series, 1181, p. 012061
12. Analysis of sub-GLE and GLE events using NM data: space weather applications [3]
    Mishev, A. & Usoskin, I., Journal of Physics Conference Series, Journal of Physics Conference Series, 1181, p. 012006
13. Neutron monitor yield function at several altitudes above sea level: new improved computation [0]
    Mishev, A., Kovaltsov, G. & Usoskin, I., 36th International Cosmic Ray Conference (ICRC2019), International Cosmic Ray Conference, 36, p. 1125
14. Further Search for Extreme Events [0]
    Miyake, F., Ebihara, Y., Hayakawa, H., Maehara, H., Mitsuma, Y., Usoskin, I., Wang, F. & Willis, D. M., Extreme Solar Particle Storms (Editors: Miyake, Fusa, Usoskin, Ilya & Poluianov, Stepan), p.7
15. Extreme Solar Particle Storms; The hostile Sun [48]
    Miyake, Fusa, Usoskin, Ilya & Poluianov, Stepan,
16. Historical astronomical data: urgent need for preservation, digitization enabling scientific exploration [6]
    Pevtsov, Alexei, Griffin, Elizabeth, Grindlay, Jonathan, Kafka, Stella, Bartlett, Jennifer, Usoskin, Ilya, Mursula, Kalevi, Gibson, Sarah, Pillet, Valentín, Burkepile, Joan, Webb, David, Clette, Frédéric, Hesser, James, Stetson, Peter, Muñoz-Jaramillo, Andres, Hill, Frank, Bogart, Rick, Osborn, Wayne & Longcope, Dana, Bulletin of the American Astronomical Society, 51, 190
17. Spectra of solar energetic particle and galactic cosmic rays over a million years reconstructed using aluminium-26 data from lunar rocks [0]
    Poluianov, S., Kovaltsov, G. & Usoskin, I., 36th International Cosmic Ray Conference (ICRC2019), International Cosmic Ray Conference, 36, p. 1139
18. Cosmic-ray variability on the multi-millennial time scale: A new multi-proxy reconstruction [0]
    Usoskin, I., Wu, C. J., Krivova, N., Solanki, S. K., Kovaltsov, G., Baroni, M. & Bard, E., 36th International Cosmic Ray Conference (ICRC2019), International Cosmic Ray Conference, 36, p. 1164
19. Multi-NM spectral slope analysis of long-term cosmic-ray variations at Earth [0]
    Usoskin, I., Väisänen, P. & Mursula, K., 36th International Cosmic Ray Conference (ICRC2019), International Cosmic Ray Conference, 36, p. 1165
20. Introduction [1]
    Usoskin, I. & Miyake, F., Extreme Solar Particle Storms (Editors: Miyake, Fusa, Usoskin, Ilya & Poluianov, Stepan), p.1
21. Author Correction: Solar superstorm of AD 774 recorded subannually by Arctic tree rings [0]
    Uusitalo, J., Arppe, L., Hackman, T., Helama, S., Kovaltsov, G., Mielikäinen, K., Mäkinen, H., Nöjd, P., Palonen, V., Usoskin, I. & Oinonen, M., Nature Communications, 10, 1292
22. Long-Term and Solar Cycle Variation of Galactic Cosmic Rays: Evidence for Variable Heliospheric Turbulence [11]
    Väisänen, Pauli, Usoskin, Ilya & Mursula, Kalevi, Journal of Geophysical Research (Space Physics), 124, 804

2018

1. Extreme Value Theory Applied to the Millennial Sunspot Number Series [20]
   Acero, F. J., Gallego, M. C., García, J. A., Usoskin, I. G. & Vaquero, J. M., ApJ, 853, 80
2. Revised historical solar irradiance forcing [53]
   Egorova, T., Schmutz, W., Rozanov, E., Shapiro, A. I., Usoskin, I., Beer, J., Tagirov, R. V. & Peter, T., A&A, 615, A85
3. An Anisotropic Cosmic-Ray Enhancement Event on 07-June-2015: A Possible Origin [15]
   Gil, Agnieszka, Kovaltsov, Gennady A., Mikhailov, Vladimir V., Mishev, Alexander, Poluianov, Stepan & Usoskin, Ilya G., Solar Physics, 293, 154
4. Can Superflares Occur on the Sun? A View from Dynamo Theory [20]
   Katsova, M. M., Kitchatinov, L. L., Livshits, M. A., Moss, D. L., Sokoloff, D. D. & Usoskin, I. G., Astronomy Reports, 62, 72
5. Spatial Organization of Seven Extreme Solar Energetic Particle Events [13]
   Kocharov, Leon, Pohjolainen, Silja, Reiner, Mike J., Mishev, Alexander, Wang, Haimin, Usoskin, Ilya & Vainio, Rami, ApJ, 862, L20
6. Effective Rigidity of a Polar Neutron Monitor for Recording Ground-Level Enhancements [15]
   Koldobskiy, Sergey A., Kovaltsov, Gennady A. & Usoskin, Ilya G., Solar Physics, 293, 110
7. A Solar Cycle of Cosmic Ray Fluxes for 2006-2014: Comparison between PAMELA and Neutron Monitors [9]
   Koldobskiy, Sergey A., Kovaltsov, Gennady A. & Usoskin, Ilya G., Journal of Geophysical Research (Space Physics), 123, 4479
8. First Analysis of Ground-Level Enhancement (GLE) 72 on 10 September 2017: Spectral and Anisotropy Characteristics [57]
   Mishev, A., Usoskin, I., Raukunen, O., Paassilta, M., Valtonen, E., Kocharov, L. & Vainio, R., Solar Physics, 293, 136
9. Assessment of the Radiation Environment at Commercial Jet-Flight Altitudes During GLE 72 on 10 September 2017 Using Neutron Monitor Data [34]
   Mishev, A. L. & Usoskin, I. G., Space Weather, 16, 1921
10. Neutron monitor count rate increase as a proxy for dose rate assessment at aviation altitudes during GLEs [10]
    Mishev, Alexander, Tuohino, Sasu & Usoskin, Ilya, Journal of Space Weather and Space Climate, 8, A46
11. Solar energetic particles and galactic cosmic rays over millions of years as inferred from data on cosmogenic ²⁶Al in lunar samples [28]
    Poluianov, S., Kovaltsov, G. A. & Usoskin, I. G., A&A, 618, A96
12. Upgrade of GLE database: Assessment of effective dose rate at flight altitude [12]
    Tuohino, S., Ibragimov, A., Usoskin, I. & Mishev, A., Advances in Space Research, 62, 398
13. Comment on the paper by Popova et al. "On a role of quadruple component of magnetic field in defining solar activity in grand cycles" [8]
    Usoskin, Ilya G., Journal of Atmospheric and Solar-Terrestrial Physics, 176, 69
14. Solar superstorm of AD 774 recorded subannually by Arctic tree rings [50]
    Uusitalo, J., Arppe, L., Hackman, T., Helama, S., Kovaltsov, G., Mielikäinen, K., Mäkinen, H., Nöjd, P., Palonen, V., Usoskin, I. & Oinonen, M., Nature Communications, 9, 3495
15. Structure of the Power Spectral Density of Galactic Cosmic Ray Variation during 1953-2016 [0]
    Väisänen, Pauli, Usoskin, Ilya & Mursula, Kalevi, Space Weather of the Heliosphere: Processes and Forecasts (Editors: Foullon, Claire & Malandraki, Olga E.), IAU Symposium, 335, p. 82
16. A Test of the Active-Day Fraction Method of Sunspot Group Number Calibration: Dependence on the Level of Solar Activity [9]
    Willamo, T., Usoskin, I. G. & Kovaltsov, G. A., Solar Physics, 293, 69
17. Solar activity over nine millennia: A consistent multi-proxy reconstruction [86]
    Wu, C. J., Usoskin, I. G., Krivova, N., Kovaltsov, G. A., Baroni, M., Bard, E. & Solanki, S. K., A&A, 615, A93
18. Solar total and spectral irradiance reconstruction over the last 9000 years [100]
    Wu, C.-J., Krivova, N. A., Solanki, S. K. & Usoskin, I. G., A&A, 620, A120

2017

1. Analysis of Ground Level Enhancements (GLE): Extreme solar energetic particle events have hard spectra [46]
   Asvestari, E., Willamo, T., Gil, A., Usoskin, I. G., Kovaltsov, G. A., Mikhailov, V. V. & Mayorov, A., Advances in Space Research, 60, 781
2. Assessment of different sunspot number series using the cosmogenic isotope ⁴⁴Ti in meteorites [27]
   Asvestari, Eleanna, Usoskin, Ilya G., Kovaltsov, Gennady A., Owens, Mathew J., Krivova, Natalie A., Rubinetti, Sara & Taricco, Carla, MNRAS, 467, 1608
3. Neutron Monitors and Cosmogenic Isotopes as Cosmic Ray Energy-Integration Detectors: Effective Yield Functions, Effective Energy, and Its Dependence on the Local Interstellar Spectrum [32]
   Asvestari, Eleanna, Gil, Agnieszka, Kovaltsov, Gennady A. & Usoskin, Ilya G., Journal of Geophysical Research (Space Physics), 122, 9790
4. New reconstruction of the sunspot group numbers since 1739 using direct calibration and "backbone" methods [83]
   Chatzistergos, Theodosios, Usoskin, Ilya G., Kovaltsov, Gennady A., Krivova, Natalie A. & Solanki, Sami K., A&A, 602, A69
5. Heliospheric modulation of galactic cosmic rays: Effective energy of ground-based detectors [2]
   Gil, A., Asvestari, E., Kovaltsov, G. & Usoskin, I., 35th International Cosmic Ray Conference (ICRC2017), International Cosmic Ray Conference, 301, p. 32
6. The PMIP4 contribution to CMIP6 - Part 3: The last millennium, scientific objective, and experimental design for the PMIP4 past1000 simulations [182]
   Jungclaus, Johann H., Bard, Edouard, Baroni, Mélanie, Braconnot, Pascale, Cao, Jian, Chini, Louise P., Egorova, Tania, Evans, Michael, Fidel González-Rouco, J., Goosse, Hugues, Hurtt, George C., Joos, Fortunat, Kaplan, Jed O., Khodri, Myriam, Klein Goldewijk, Kees, Krivova, Natalie, LeGrande, Allegra N., Lorenz, Stephan J., Luterbacher, Jürg, Man, Wenmin, Maycock, Amanda C., Meinshausen, Malte, Moberg, Anders, Muscheler, Raimund, Nehrbass-Ahles, Christoph, Otto-Bliesner, Bette I., Phipps, Steven J., Pongratz, Julia, Rozanov, Eugene, Schmidt, Gavin A., Schmidt, Hauke, Schmutz, Werner, Schurer, Andrew, Shapiro, Alexander I., Sigl, Michael, Smerdon, Jason E., Solanki, Sami K., Timmreck, Claudia, Toohey, Matthew, Usoskin, Ilya G., Wagner, Sebastian, Wu, Chi-Ju, Leng Yeo, Kok, Zanchettin, Davide, Zhang, Qiong & Zorita, Eduardo, Geoscientific Model Development, 10, 4005
7. Investigating the Origins of Two Extreme Solar Particle Events: Proton Source Profile and Associated Electromagnetic Emissions [35]
   Kocharov, Leon, Pohjolainen, Silja, Mishev, Alexander, Reiner, Mike J., Lee, Jeongwoo, Laitinen, Timo, Didkovsky, Leonid V., Pizzo, Victor J., Kim, Roksoon, Klassen, Andreas, Karlicky, Marian, Cho, Kyung-Suk, Gary, Dale E., Usoskin, Ilya, Valtonen, Eino & Vainio, Rami, ApJ, 839, 79
8. Wings of the butterfly: Sunspot groups for 1826-2015 [23]
   Leussu, R., Usoskin, I. G., Senthamizh Pavai, V., Diercke, A., Arlt, R., Denker, C. & Mursula, K., A&A, 599, A131
9. Solar forcing for CMIP6 (v3.2) [351]
   Matthes, Katja, Funke, Bernd, Andersson, Monika E., Barnard, Luke, Beer, Jürg, Charbonneau, Paul, Clilverd, Mark A., Dudok de Wit, Thierry, Haberreiter, Margit, Hendry, Aaron, Jackman, Charles H., Kretzschmar, Matthieu, Kruschke, Tim, Kunze, Markus, Langematz, Ulrike, Marsh, Daniel R., Maycock, Amanda C., Misios, Stergios, Rodger, Craig J., Scaife, Adam A., Seppälä, Annika, Shangguan, Ming, Sinnhuber, Miriam, Tourpali, Kleareti, Usoskin, Ilya, van de Kamp, Max, Verronen, Pekka T. & Versick, Stefan, Geoscientific Model Development, 10, 2247
10. Using global neutron monitor network data for GLE analysis: recent results [2]
    Mishev, A., Usoskin, I. & Kocharov, L., 35th International Cosmic Ray Conference (ICRC2017), International Cosmic Ray Conference, 301, p. 147
11. Computation of electron precipitation atmospheric ionization: updated model CRAC-EPII [0]
    Mishev, A., Artamonov, A., Kovaltsov, G., Mironova, I. & Usoskin, I., 35th International Cosmic Ray Conference (ICRC2017), International Cosmic Ray Conference, 301, p. 86
12. Updated model CRAC:HEPII of atmospheric ionization due to high energy protons [0]
    Mishev, A., Artamonov, A., Kovalstov, G. & Usoskin, I., 35th International Cosmic Ray Conference (ICRC2017), International Cosmic Ray Conference, 301, p. 79
13. Origin of two extreme solar particle events [0]
    Mishev, A., Kocharov, L., Pohjolainen, S., Reiner, M. J., Lee, J., Laitinen, T., Didkovsky, L. V., Pizzo, V. J., Kim, R., Klassen, A., Karlicky, M., Choj, K. S., Kovaltsov, G. A., Usoskin, I. G., Valtonen, E. & Vainio, R., 35th International Cosmic Ray Conference (ICRC2017), International Cosmic Ray Conference, 301, p. 146
14. Assessment of spectral and angular characteristics of sub-GLE events using the global neutron monitor network [42]
    Mishev, Alexander, Poluianov, Stepan & Usoskin, Ilya, Journal of Space Weather and Space Climate, 7, A28
15. The Maunder minimum and the Little Ice Age: an update from recent reconstructions and climate simulations [72]
    Owens, Mathew J., Lockwood, Mike, Hawkins, Ed, Usoskin, Ilya, Jones, Gareth S., Barnard, Luke, Schurer, Andrew & Fasullo, John, Journal of Space Weather and Space Climate, 7, A33
16. Revisited definition of GLE [0]
    Poluianov, S., Usoskin, I., Mishev, A., Smart, D. F. & Shea, M. A., 35th International Cosmic Ray Conference (ICRC2017), International Cosmic Ray Conference, 301, p. 125
17. Cosmogenic isotopes Be-7, Be-10, C-14, Na-22 and Cl-36 in the atmosphere: Altitudinal profiles of yield functions [0]
    Poluianov, S., Kovaltsov, G., Mishev, A. & Usoskin, I., 35th International Cosmic Ray Conference (ICRC2017), International Cosmic Ray Conference, 301, p. 124
18. The energetic particle intensity estimated from cosmogenic isotope Al-26 produced in lunar samples [0]
    Poluianov, S., Kovaltsov, G. & Usoskin, I., 35th International Cosmic Ray Conference (ICRC2017), International Cosmic Ray Conference, 301, p. 123
19. GLE and Sub-GLE Redefinition in the Light of High-Altitude Polar Neutron Monitors [85]
    Poluianov, S. V., Usoskin, I. G., Mishev, A. L., Shea, M. A. & Smart, D. F., Solar Physics, 292, 176
20. Atmospheric impacts of the strongest known solar particle storm of 775 AD [66]
    Sukhodolov, Timofei, Usoskin, Ilya, Rozanov, Eugene, Asvestari, Eleanna, Ball, William T., Curran, Mark A. J., Fischer, Hubertus, Kovaltsov, Gennady, Miyake, Fusa, Peter, Thomas, Plummer, Christopher, Schmutz, Werner, Severi, Mirko & Traversi, Rita, Scientific Reports, 7, 45257
21. Analysis of Ground-Level Enhancements: Strong events are hard [0]
    Usoskin, I., Asvestari, E., Willamo, T., Gil, A., Kovaltsov, G., Mikhailov, V. & Mayorov, A., 35th International Cosmic Ray Conference (ICRC2017), International Cosmic Ray Conference, 301, p. 126
22. Extreme solar particle events: Can we assess the worst case scenario? [0]
    Usoskin, I., 35th International Cosmic Ray Conference (ICRC2017), International Cosmic Ray Conference, 301, p. 127
23. An Optical Atmospheric Phenomenon Observed in 1670 over the City of Astrakhan Was Not a Mid-Latitude Aurora [20]
    Usoskin, I. G., Kovaltsov, G. A., Mishina, L. N., Sokoloff, D. D. & Vaquero, J., Solar Physics, 292, 15
24. A history of solar activity over millennia [329]
    Usoskin, Ilya G., Living Reviews in Solar Physics, 14, 3
25. Heliospheric modulation of cosmic rays during the neutron monitor era: Calibration using PAMELA data for 2006-2010 [136]
    Usoskin, Ilya G., Gil, Agnieszka, Kovaltsov, Gennady A., Mishev, Alexander L. & Mikhailov, Vladimir V., Journal of Geophysical Research (Space Physics), 122, 3875
26. Updated sunspot group number reconstruction for 1749-1996 using the active day fraction method [35]
    Willamo, T., Usoskin, I. G. & Kovaltsov, G. A., A&A, 601, A109

2016

1. Neutron monitor yield function for solar neutrons: A new computation [5]
   Artamonov, A. A., Kovaltsov, G. A., Mishev, A. L. & Usoskin, I. G., Journal of Geophysical Research (Space Physics), 121, 117
2. Model CRAC:EPII for atmospheric ionization due to precipitating electrons: Yield function and applications [13]
   Artamonov, A. A., Mishev, A. L. & Usoskin, I. G., Journal of Geophysical Research (Space Physics), 121, 1736
3. Atmospheric ionization induced by precipitating electrons: Comparison of CRAC:EPII model with a parametrization model [15]
   Artamonov, A. A., Mishev, A. L. & Usoskin, I. G., Journal of Atmospheric and Solar-Terrestrial Physics, 149, 161
4. Semi-empirical Long-term Reconstruction of the Heliospheric Parameters: Validation by Cosmogenic Radionuclide Records [1]
   Asvestari, E., Usoskin, I. G., Cameron, R. H. & Krivova, N. A., Coimbra Solar Physics Meeting: Ground-based Solar Observations in the Space Instrumentation Era (Editors: Dorotovic, I., Fischer, C. E. & Temmer, M.), Astronomical Society of the Pacific Conference Series, 504, p. 269
5. An empirical model of heliospheric cosmic ray modulation on long-term time scale [16]
   Asvestari, Eleanna & Usoskin, Ilya G., Journal of Space Weather and Space Climate, 6, A15
6. Properties of sunspot cycles and hemispheric wings since the 19th century [15]
   Leussu, Raisa, Usoskin, Ilya G., Arlt, Rainer & Mursula, Kalevi, A&A, 592, A160
7. An Assessment of Sunspot Number Data Composites over 1845-2014 [34]
   Lockwood, M., Owens, M. J., Barnard, L. & Usoskin, I. G., ApJ, 824, 54
8. Tests of Sunspot Number Sequences: 2. Using Geomagnetic and Auroral Data [22]
   Lockwood, M., Owens, M. J., Barnard, L., Scott, C. J., Usoskin, I. G. & Nevanlinna, H., Solar Physics, 291, 2811
9. Tests of Sunspot Number Sequences: 3. Effects of Regression Procedures on the Calibration of Historic Sunspot Data [32]
   Lockwood, M., Owens, M. J., Barnard, L. & Usoskin, I. G., Solar Physics, 291, 2829
10. Analysis of the Ground-Level Enhancements on 14 July 2000 and 13 December 2006 Using Neutron Monitor Data [40]
    Mishev, A. & Usoskin, I., Solar Physics, 291, 1225
11. Application of a full chain analysis using neutron monitor data for space weather studies [0]
    Mishev, A. & Usoskin, I., arXiv:1612.07043
12. Near-Earth heliospheric magnetic field intensity since 1750: 2. Cosmogenic radionuclide reconstructions [22]
    Owens, M. J., Cliver, E., McCracken, K. G., Beer, J., Barnard, L., Lockwood, M., Rouillard, A., Passos, D., Riley, P., Usoskin, I. & Wang, Y.-M., Journal of Geophysical Research (Space Physics), 121, 6064
13. Near-Earth heliospheric magnetic field intensity since 1750: 1. Sunspot and geomagnetic reconstructions [31]
    Owens, M. J., Cliver, E., McCracken, K. G., Beer, J., Barnard, L., Lockwood, M., Rouillard, A., Passos, D., Riley, P., Usoskin, I. & Wang, Y.-M., Journal of Geophysical Research (Space Physics), 121, 6048
14. Production of cosmogenic isotopes ⁷Be, ¹⁰Be, ¹⁴C, ²²Na, and ³⁶Cl in the atmosphere: Altitudinal profiles of yield functions [109]
    Poluianov, S. V., Kovaltsov, G. A., Mishev, A. L. & Usoskin, I. G., Journal of Geophysical Research (Atmospheres), 121, 8125
15. The Laschamp geomagnetic excursion featured in nitrate record from EPICA-Dome C ice core [10]
    Traversi, R., Becagli, S., Poluianov, S., Severi, M., Solanki, S. K., Usoskin, I. G. & Udisti, R., Scientific Reports, 6, 20235
16. A New Calibrated Sunspot Group Series Since 1749: Statistics of Active Day Fractions [110]
    Usoskin, I. G., Kovaltsov, G. A., Lockwood, M., Mursula, K., Owens, M. & Solanki, S. K., Solar Physics, 291, 2685
17. Dependence of the Sunspot-Group Size on the Level of Solar Activity and its Influence on the Calibration of Solar Observers [23]
    Usoskin, I. G., Kovaltsov, G. A. & Chatzistergos, T., Solar Physics, 291, 3793
18. Solar activity during the Holocene: the Hallstatt cycle and its consequence for grand minima and maxima [125]
    Usoskin, I. G., Gallet, Y., Lopes, F., Kovaltsov, G. A. & Hulot, G., A&A, 587, A150
19. Balloon measurements of the vertical ionization profile over southern Israel and comparison to mid-latitude observations [6]
    Yaniv, Roy, Yair, Yoav, Price, Colin, Nicoll, Keri, Harrison, Giles, Artamonov, Anton & Usoskin, Ilya, Journal of Atmospheric and Solar-Terrestrial Physics, 149, 87

2015

1. Sensitivity of the world-wide neutron monitor network to solar neutrons: A revised approach [0]
   Artamonov, A., Kovaltsov, G., Mishev, A. Alexander & Usoskin, I., 34th International Cosmic Ray Conference (ICRC2015), International Cosmic Ray Conference, 34, p. 163
2. Use of cosmogenic radionuclides 14C and 10Be to verify empirically reconstructed cosmic ray modulation since 1616 [0]
   Asvestari, E., Usoskin, I. & Kovaltsov, G., 34th International Cosmic Ray Conference (ICRC2015), International Cosmic Ray Conference, 34, p. 53
3. Solar Cycle in the Heliosphere and Cosmic Rays [2]
   Bazilevskaya, Galina A., Cliver, Edward W., Kovaltsov, Gennady A., Ling, Alan G., Shea, M. A., Smart, D. F. & Usoskin, Ilya G., The Solar Activity Cycle (Editors: Balogh, André, Hudson, Hugh, Petrovay, Kristóf & von Steiger, Rudolf), p.409
4. The impact of geomagnetic spikes on the production rates of cosmogenic ¹⁴C and ¹⁰Be in the Earth's atmosphere [11]
   Fournier, Alexandre, Gallet, Yves, Usoskin, Ilya, Livermore, Philip W. & Kovaltsov, Gennady A., Geophysical Research Letters, 42, 2759
5. Can we properly model the neutron monitor count rate? [36]
   Gil, Agnieszka, Usoskin, Ilya G., Kovaltsov, Gennady A., Mishev, Alexander L., Corti, Claudio & Bindi, Veronica, Journal of Geophysical Research (Space Physics), 120, 7172
6. Resolving multiple sources of solar relativistic particles [0]
   Kocharov, L., Klassen, A., Usoskin, I. & Valtonen, E., 34th International Cosmic Ray Conference (ICRC2015), International Cosmic Ray Conference, 34, p. 57
7. Comparative Morphology of Solar Relativistic Particle Events [7]
   Kocharov, Leon, Klassen, Andreas, Valtonen, Eino, Usoskin, Ilya & Ryan, James M., ApJ, 811, L9
8. Has the Earth been exposed to numerous supernovae within the last 300 kyr? [10]
   Melott, Adrian L., Usoskin, Ilya G., Kovaltsov, Gennady A. & Laird, Claude M., International Journal of Astrobiology, 14, 375
9. Energetic Particle Influence on the Earth's Atmosphere [216]
   Mironova, Irina A., Aplin, Karen L., Arnold, Frank, Bazilevskaya, Galina A., Harrison, R. Giles, Krivolutsky, Alexei A., Nicoll, Keri A., Rozanov, Eugene V., Turunen, Esa & Usoskin, Ilya G., Space Science Reviews, 194, 1
10. A New neutron monitor yield function computed for different altitudes: Application for a GLE analysis [1]
    Mishev, A., Usoskin, I. & Kovaltsov, G., 34th International Cosmic Ray Conference (ICRC2015), International Cosmic Ray Conference, 34, p. 159
11. Effective dose calculation at flight altitudes with the newly computed yield function [1]
    Mishev, A. & Usoskin, I., 34th International Cosmic Ray Conference (ICRC2015), International Cosmic Ray Conference, 34, p. 158
12. Computation of dose rate at flight altitudes during ground level enhancements no. 69, 70 and 71 [28]
    Mishev, A. L., Adibpour, F., Usoskin, I. G. & Felsberger, E., Advances in Space Research, 55, 354
13. Numerical model for computation of effective and ambient dose equivalent at flight altitudes. Application for dose assessment during GLEs [32]
    Mishev, Alexander & Usoskin, Ilya, Journal of Space Weather and Space Climate, 5, A10
14. An Unusual Pattern of Cosmic-Ray Modulation During Solar Cycles 23 and 24 [15]
    Pacini, A. A. & Usoskin, I. G., Solar Physics, 290, 943
15. Signature of a sudden stratospheric warming in the near-ground ⁷Be flux [14]
    Pacini, A. A., Usoskin, I. G., Mursula, K., Echer, E. & Evangelista, H., Atmospheric Environment, 113, 27
16. Flux of solar energetic particles in the distant past: Data from lunar rocks [0]
    Poluianov, S., Artamonov, A., Kovaltsov, G. & Usoskin, I., 34th International Cosmic Ray Conference (ICRC2015), International Cosmic Ray Conference, 34, p. 51
17. Mini Neutron Monitors at Concordia Research Station, Central Antarctica [24]
    Poluianov, Stepan, Usoskin, Ilya, Mishev, Alexander, Moraal, Harm, Kruger, Helena, Casasanta, Giampietro, Traversi, Rita & Udisti, Roberto, Journal of Astronomy and Space Sciences, 32, 281
18. Inferring the Structure of the Solar Corona and Inner Heliosphere During the Maunder Minimum Using Global Thermodynamic Magnetohydrodynamic Simulations [74]
    Riley, Pete, Lionello, Roberto, Linker, Jon A., Cliver, Ed, Balogh, Andre, Beer, Jürg, Charbonneau, Paul, Crooker, Nancy, DeRosa, Marc, Lockwood, Mike, Owens, Matt, McCracken, Ken, Usoskin, Ilya & Koutchmy, S., ApJ, 802, 105
19. Database of Ground Level Enhancements (GLE) of High Energy Solar Proton Events [7]
    Usoskin, I., Ibragimov, A., Shea, M. A. & Smart, D. F., 34th International Cosmic Ray Conference (ICRC2015), International Cosmic Ray Conference, 34, p. 54
20. A two-wave dynamo model by Zharkova et al. (2015) disagrees with data on long-term solar variability [1]
    Usoskin, I. & Kovaltsov, G., arXiv:1512.05516
21. A mini neutron monitor in Central Antarctica (Dome Concordia) [1]
    Usoskin, I., Poluianov, S., Moraal, H., Krüger, H., Casasanta, G., Traversi, R. & Udisty, R., 34th International Cosmic Ray Conference (ICRC2015), International Cosmic Ray Conference, 34, p. 217
22. Assessment of F200 fluence for major solar energetic particle events on the multi-millennial time scale [0]
    Usoskin, I., Kovaltsov, G., Cliver, E., Dietrich, W. F. & Tylka, A., 34th International Cosmic Ray Conference (ICRC2015), International Cosmic Ray Conference, 34, p. 18
23. Force-field parameterization of the galactic cosmic ray spectrum: Validation for Forbush decreases [22]
    Usoskin, I. G., Kovaltsov, G. A., Adriani, O., Barbarino, G. C., Bazilevskaya, G. A., Bellotti, R., Boezio, M., Bogomolov, E. A., Bongi, M., Bonvicini, V., Bottai, S., Bruno, A., Cafagna, F., Campana, D., Carbone, R., Carlson, P., Casolino, M., Castellini, G., De Donato, C., De Santis, C., De Simone, N., Di Felice, V., Formato, V., Galper, A. M., Karelin, A. V., Koldashov, S. V., Koldobskiy, S., Krutkov, S. Y., Kvashnin, A. N., Leonov, A., Malakhov, V., Marcelli, L., Martucci, M., Mayorov, A. G., Menn, W., Mergé, M., Mikhailov, V. V., Mocchiutti, E., Monaco, A., Mori, N., Munini, R., Osteria, G., Palma, F., Panico, B., Papini, P., Pearce, M., Picozza, P., Pizzolotto, C., Ricci, M., Ricciarini, S. B., Rossetto, L., Sarkar, R., Scotti, V., Simon, M., Sparvoli, R., Spillantini, P., Stozhkov, Y. I., Vacchi, A., Vannuccini, E., Vasilyev, G. I., Voronov, S. A., Yurkin, Y. T., Zampa, G., Zampa, N. & Zverev, V. G., Advances in Space Research, 55, 2940
24. Nature's Third Cycle: A Story of Sunspots [0]
    Usoskin, Ilya, American Journal of Physics, 83, 984
25. The carbon-14 spike in the 8th century was not caused by a cometary impact on Earth [16]
    Usoskin, Ilya G. & Kovaltsov, Gennady A., Icarus, 260, 475
26. The Maunder minimum (1645-1715) was indeed a grand minimum: A reassessment of multiple datasets [192]
    Usoskin, Ilya G., Arlt, Rainer, Asvestari, Eleanna, Hawkins, Ed, Käpylä, Maarit, Kovaltsov, Gennady A., Krivova, Natalie, Lockwood, Michael, Mursula, Kalevi, O'Reilly, Jezebel, Owens, Matthew, Scott, Chris J., Sokoloff, Dmitry D., Solanki, Sami K., Soon, Willie & Vaquero, José M., A&A, 581, A95
27. Level and length of cyclic solar activity during the Maunder minimum as deduced from the active-day statistics [81]
    Vaquero, J. M., Kovaltsov, G. A., Usoskin, I. G., Carrasco, V. M. S. & Gallego, M. C., A&A, 577, A71
28. Long-term variation in the Sun's activity caused by magnetic Rossby waves in the tachocline [38]
    Zaqarashvili, Teimuraz V., Oliver, Ramon, Hanslmeier, Arnold, Carbonell, Marc, Ballester, Jose Luis, Gachechiladze, Tamar & Usoskin, Ilya G., ApJ, 805, L14
29. Solar surface rotation: N-S asymmetry and recent speed-up [21]
    Zhang, L., Mursula, K. & Usoskin, I., A&A, 575, L2

2014

1. Release timescales of solar energetic particles in the low corona [29]
   Agueda, N., Klein, K.-L., Vilmer, N., Rodríguez-Gasén, R., Malandraki, O. E., Papaioannou, A., Subirà, M., Sanahuja, B., Valtonen, E., Dröge, W., Nindos, A., Heber, B., Braune, S., Usoskin, I. G., Heynderickx, D., Talew, E. & Vainio, R., A&A, 570, A5
2. Solar Cycle in the Heliosphere and Cosmic Rays [37]
   Bazilevskaya, Galina A., Cliver, Edward W., Kovaltsov, Gennady A., Ling, Alan G., Shea, M. A., Smart, D. F. & Usoskin, Ilya G., Space Science Reviews, 186, 409
3. Transmission and Emission of Solar Energetic Particles in Semi-transparent Shocks [5]
   Kocharov, Leon, Laitinen, Timo, Usoskin, Ilya & Vainio, Rami, ApJ, 787, L21
4. Occurrence Probability of Large Solar Energetic Particle Events: Assessment from Data on Cosmogenic Radionuclides in Lunar Rocks [27]
   Kovaltsov, G. A. & Usoskin, I. G., Solar Physics, 289, 211
5. Fluence Ordering of Solar Energetic Proton Events Using Cosmogenic Radionuclide Data [36]
   Kovaltsov, G. A., Usoskin, I. G., Cliver, E. W., Dietrich, W. F. & Tylka, A. J., Solar Physics, 289, 4691
6. Possible effect of strong solar energetic particle events on polar stratospheric aerosol: a summary of observational results [19]
   Mironova, I. A. & Usoskin, I. G., Environmental Research Letters, 9, 015002
7. Analysis of the ground level enhancement on 17 May 2012 using data from the global neutron monitor network [67]
   Mishev, A. L., Kocharov, L. G. & Usoskin, I. G., Journal of Geophysical Research (Space Physics), 119, 670
8. Critical Analysis of a Hypothesis of the Planetary Tidal Influence on Solar Activity [30]
   Poluianov, S. & Usoskin, I., Solar Physics, 289, 2333
9. Cosmogenic production and climate contributions to nitrate record in the TALDICE Antarctic ice core [3]
   Poluianov, S., Traversi, R. & Usoskin, I., Journal of Atmospheric and Solar-Terrestrial Physics, 121, 50
10. Cosmogenic Isotope Variability During the Maunder Minimum: Normal 11-year Cycles Are Expected [17]
    Poluianov, S. V., Usoskin, I. G. & Kovaltsov, G. A., Solar Physics, 289, 4701
11. A review of Holocene solar-linked climatic variation on centennial to millennial timescales: Physical processes, interpretative frameworks and a new multiple cross-wavelet transform algorithm [105]
    Soon, Willie, Velasco Herrera, Victor M., Selvaraj, Kandasamy, Traversi, Rita, Usoskin, Ilya, Chen, Chen-Tung Arthur, Lou, Jiann-Yuh, Kao, Shuh-Ji, Carter, Robert M., Pipin, Valery, Severi, Mirko & Becagli, Silvia, Earth Science Reviews, 134, 1
12. Evidence for distinct modes of solar activity [103]
    Usoskin, I. G., Hulot, G., Gallet, Y., Roth, R., Licht, A., Joos, F., Kovaltsov, G. A., Thébault, E. & Khokhlov, A., A&A, 562, L10

2013

1. Sunspot positions and sizes for 1825-1867 from the observations by Samuel Heinrich Schwabe [98]
   Arlt, R., Leussu, R., Giese, N., Mursula, K. & Usoskin, I. G., MNRAS, 433, 3165
2. Influence of a Carrington-like event on the atmospheric chemistry, temperature and dynamics: revised [26]
   Calisto, M., Usoskin, I. & Rozanov, E., Environmental Research Letters, 8, 045010
3. The First Ground Level Enhancement Event of Solar Cycle 24: Direct Observation of Shock Formation and Particle Release Heights [108]
   Gopalswamy, N., Xie, H., Akiyama, S., Yashiro, S., Usoskin, I. G. & Davila, J. M., ApJ, 765, L30
4. Inconsistency of the Wolf sunspot number series around 1848 [35]
   Leussu, Raisa, Usoskin, Ilya G., Arlt, Rainer & Mursula, Kalevi, A&A, 559, A28
5. Calculation of the cosmic ray induced ionization for the region of Athens [3]
   Makrantoni, P., Mavromichalaki, H., Usoskin, I. & Papaioannou, A., Journal of Physics Conference Series, Journal of Physics Conference Series, 409, p. 012232
6. Possible effect of extreme solar energetic particle events of September-October 1989 on polar stratospheric aerosols: a case study [18]
   Mironova, I. A. & Usoskin, I. G., Atmospheric Chemistry & Physics, 13, 8543
7. Computations of cosmic ray propagation in the Earth's atmosphere, towards a GLE analysis [8]
   Mishev, A. & Usoskin, I., Journal of Physics Conference Series, Journal of Physics Conference Series, 409, p. 012152
8. Neutron monitor yield function: New improved computations [68]
   Mishev, A. L., Usoskin, I. G. & Kovaltsov, G. A., Journal of Geophysical Research (Space Physics), 118, 2783
9. Eccentric dipole approximation of the geomagnetic field: Application to cosmic ray computations [47]
   Nevalainen, J., Usoskin, I. G. & Mishev, A., Advances in Space Research, 52, 22
10. Waldmeier relations and the solar cycle dynamics by the mean-field dynamos [4]
    Pipin, V. V., Sokoloff, D. D. & Usoskin, I. G., Solar and Astrophysical Dynamos and Magnetic Activity (Editors: Kosovichev, Alexander G., de Gouveia Dal Pino, Elisabete & Yan, Yihua), IAU Symposium, 294, p. 595
11. Forecast of the arrival of interplanetary shocks by measuring cosmic ray fluctuations in the interplanetary medium [0]
    Starodubtsev, S. A., Grigoryev, V. G. & Usoskin, I. G., Journal of Physics Conference Series, Journal of Physics Conference Series, 409, p. 012180
12. The AD775 cosmic event revisited: the Sun is to blame [201]
    Usoskin, I. G., Kromer, B., Ludlow, F., Beer, J., Friedrich, M., Kovaltsov, G. A., Solanki, S. K. & Wacker, L., A&A, 552, L3
13. A History of Solar Activity over Millennia [160]
    Usoskin, Ilya G., Living Reviews in Solar Physics, 10, 1
14. The first SEPServer event catalogue ~68-MeV solar proton events observed at 1 AU in 1996-2010 [97]
    Vainio, Rami, Valtonen, Eino, Heber, Bernd, Malandraki, Olga E., Papaioannou, Athanasios, Klein, Karl-Ludwig, Afanasiev, Alexander, Agueda, Neus, Aurass, Henry, Battarbee, Markus, Braune, Stephan, Dröge, Wolfgang, Ganse, Urs, Hamadache, Clarisse, Heynderickx, Daniel, Huttunen-Heikinmaa, Kalle, Kiener, Jürgen, Kilian, Patrick, Kopp, Andreas, Kouloumvakos, Athanasios, Maisala, Sami, Mishev, Alexander, Miteva, Rositsa, Nindos, Alexander, Oittinen, Tero, Raukunen, Osku, Riihonen, Esa, Rodríguez-Gasén, Rosa, Saloniemi, Oskari, Sanahuja, Blai, Scherer, Renate, Spanier, Felix, Tatischeff, Vincent, Tziotziou, Kostas, Usoskin, Ilya G. & Vilmer, Nicole, Journal of Space Weather and Space Climate, 3, A12
15. Clouds blown by the solar wind [25]
    Voiculescu, M., Usoskin, I. & Condurache-Bota, S., Environmental Research Letters, 8, 045032
16. Consistent long-term variation in the hemispheric asymmetry of solar rotation [22]
    Zhang, L., Mursula, K. & Usoskin, I., A&A, 552, A84

2012

1. Properties of Ground Level Enhancement Events and the Associated Solar Eruptions During Solar Cycle 23 [290]
   Gopalswamy, N., Xie, H., Yashiro, S., Akiyama, S., Mäkelä, P. & Usoskin, I. G., Space Science Reviews, 171, 23
2. A new model of cosmogenic production of radiocarbon ¹⁴C in the atmosphere [126]
   Kovaltsov, Gennady A., Mishev, Alexander & Usoskin, Ilya G., Earth and Planetary Science Letters, 337, 114
3. Cosmogenic ⁷Be and ²²Na in Finland: Production, observed periodicities and the connection to climatic phenomena [35]
   Leppänen, A.-P., Usoskin, I. G., Kovaltsov, G. A. & Paatero, J., Journal of Atmospheric and Solar-Terrestrial Physics, 74, 164
4. Possible effect of extreme solar energetic particle event of 20 January 2005 on polar stratospheric aerosols: direct observational evidence [33]
   Mironova, I. A., Usoskin, I. G., Kovaltsov, G. A. & Petelina, S. V., Atmospheric Chemistry & Physics, 12, 769
5. Heliospheric modulation of galactic cosmic rays during grand solar minima: Past and future variations [66]
   Owens, M. J., Usoskin, I. & Lockwood, M., Geophysical Research Letters, 39, L19102
6. Variations of the solar cycle profile in a solar dynamo with fluctuating dynamo governing parameters [47]
   Pipin, V. V., Sokoloff, D. D. & Usoskin, I. G., A&A, 542, A26
7. Estimating the frequency of extremely energetic solar events, based on solar, stellar, lunar, and terrestrial records [151]
   Schrijver, C. J., Beer, J., Baltensperger, U., Cliver, E. W., Güdel, M., Hudson, H. S., McCracken, K. G., Osten, R. A., Peter, T., Soderblom, D. R., Usoskin, I. G. & Wolff, E. W., Journal of Geophysical Research (Space Physics), 117, A08103
8. Nitrate in Polar Ice: A New Tracer of Solar Variability [46]
   Traversi, R., Usoskin, I. G., Solanki, S. K., Becagli, S., Frezzotti, M., Severi, M., Stenni, B. & Udisti, R., Solar Physics, 280, 237
9. Climate and Weather of the Sun - Earth System [0]
   Usoskin, Ilya & Krivova, Natalie, Astronomy and Astrophysics (Editors: Engvold, Oddbj\orn, Stabell, Rolf, Czerny, Bozena & Lattanzio, John), p.397
10. Grand minima of solar activity during the last millennia [12]
    Usoskin, Ilya G., Solanki, Sami K. & Kovaltsov, Gennady A., Comparative Magnetic Minima: Characterizing Quiet Times in the Sun and Stars (Editors: Mandrini, Cristina H. & Webb, David F.), IAU Symposium, 286, p. 372
11. Occurrence of Extreme Solar Particle Events: Assessment from Historical Proxy Data [104]
    Usoskin, Ilya G. & Kovaltsov, Gennady A., ApJ, 757, 92
12. Persistent solar signatures in cloud cover: spatial and temporal analysis [23]
    Voiculescu, M. & Usoskin, I., Environmental Research Letters, 7, 044004

2011

1. Influence of Galactic Cosmic Rays on atmospheric composition and dynamics [60]
   Calisto, M., Usoskin, I., Rozanov, E. & Peter, T., Atmospheric Chemistry & Physics, 11, 4547
2. Applications and usage of the real-time Neutron Monitor Database [130]
   Mavromichalaki, H., Papaioannou, A., Plainaki, C., Sarlanis, C., Souvatzoglou, G., Gerontidou, M., Papailiou, M., Eroshenko, E., Belov, A., Yanke, V., Flückiger, E. O., Bütikofer, R., Parisi, M., Storini, M., Klein, K.-L., Fuller, N., Steigies, C. T., Rother, O. M., Heber, B., Wimmer-Schweingruber, R. F., Kudela, K., Strharsky, I., Langer, R., Usoskin, I., Ibragimov, A., Chilingaryan, A., Hovsepyan, G., Reymers, A., Yeghikyan, A., Kryakunova, O., Dryn, E., Nikolayevskiy, N., Dorman, L. & Pustil'Nik, L., Advances in Space Research, 47, 2210
3. A review of Space Climate and an introduction to the papers of the JASTP special issue on Space Climate [1]
   Mursula, Kalevi, Marsh, Dan, Nandy, Dibyendu & Usoskin, Ilya, Journal of Atmospheric and Solar-Terrestrial Physics, 73, 179
4. Cosmogenic isotope ⁷Be: A case study of depositional processes in Rio de Janeiro in 2008-2009 [9]
   Pacini, A. A., Usoskin, I. G., Evangelista, H., Echer, E. & de Paula, R., Advances in Space Research, 48, 811
5. Middle atmosphere response to the solar cycle in irradiance and ionizing particle precipitation [76]
   Semeniuk, K., Fomichev, V. I., McConnell, J. C., Fu, C., Melo, S. M. L. & Usoskin, I. G., Atmospheric Chemistry & Physics, 11, 5045
6. Cosmic rays and climate forcing . [8]
   Usoskin, I. G., Memorie della Societa Astronomica Italiana, 82, 937
7. Ionization effect of solar particle GLE events in low and middle atmosphere [77]
   Usoskin, I. G., Kovaltsov, G. A., Mironova, I. A., Tylka, A. J. & Dietrich, W. F., Atmospheric Chemistry & Physics, 11, 1979
8. Numerical model of cosmic ray induced ionization in the atmosphere CRAC:CRII [1]
   Usoskin, Ilya, International Cosmic Ray Conference, International Cosmic Ray Conference, 11, p. 343
9. Long term Solar/heliospheric variability [0]
   Usoskin, Ilya, International Cosmic Ray Conference, International Cosmic Ray Conference, 11, p. 131
10. Solar modulation of cosmic rays since 1936: Neutron monitors and balloon-borne data [0]
    Usoskin, Ilya, International Cosmic Ray Conference, International Cosmic Ray Conference, 11, p. 39
11. Solar modulation parameter for cosmic rays since 1936 reconstructed from ground-based neutron monitors and ionization chambers [210]
    Usoskin, Ilya G., Bazilevskaya, Galina A. & Kovaltsov, Gennady A., Journal of Geophysical Research (Space Physics), 116, A02104
12. Revisited Sunspot Data: A New Scenario for the Onset of the Maunder Minimum [93]
    Vaquero, José M., Gallego, M. C., Usoskin, Ilya G. & Kovaltsov, Gennady A., ApJ, 731, L24
13. Evolution of the solar irradiance during the Holocene [256]
    Vieira, L. E. A., Solanki, S. K., Krivova, N. A. & Usoskin, I., A&A, 531, A6
14. Global analysis of active longitudes of solar X-ray flares [14]
    Zhang, L., Mursula, K., Usoskin, I. & Wang, H., Journal of Atmospheric and Solar-Terrestrial Physics, 73, 258
15. Global analysis of active longitudes of sunspots [22]
    Zhang, L., Mursula, K., Usoskin, I. & Wang, H., A&A, 529, A23
16. Long-term variation of solar surface differential rotation [0]
    Zhang, L., Mursula, K., Usoskin, I., Wang, H. & Du, Z., Astronomical Society of India Conference Series, Astronomical Society of India Conference Series, 2, p. 175

2010

1. Influence of Galactic Cosmic Rays on the atmospheric composition and temperature [0]
   Calisto, M., Peter, T., Rozanov, E. & Usoskin, I., 10th EMS Annual Meeting, p. EMS2010-718
2. Solar modulation in surface atmospheric electricity [36]
   Giles Harrison, R. & Usoskin, Ilya, Journal of Atmospheric and Solar-Terrestrial Physics, 72, 176
3. A new 3D numerical model of cosmogenic nuclide ¹⁰Be production in the atmosphere [74]
   Kovaltsov, Gennady A. & Usoskin, Ilya G., Earth and Planetary Science Letters, 291, 182
4. Atmospheric data over a solar cycle: no connection between galactic cosmic rays and new particle formation [54]
   Kulmala, M., Riipinen, I., Nieminen, T., Hulkkonen, M., Sogacheva, L., Manninen, H. E., Paasonen, P., Petäjä, T., Dal Maso, M., Aalto, P. P., Viljanen, A., Usoskin, I., Vainio, R., Mirme, S., Mirme, A., Minikin, A., Petzold, A., Hõrrak, U., Plaß-Dülmer, C., Birmili, W. & Kerminen, V.-M., Atmospheric Chemistry & Physics, 10, 1885
5. Cosmogenic ⁷Be in air: A complex mixture of production and transport [46]
   Leppänen, A.-P., Pacini, A. A., Usoskin, I. G., Aldahan, A., Echer, E., Evangelista, H., Klemola, S., Kovaltsov, G. A., Mursula, K. & Possnert, G., Journal of Atmospheric and Solar-Terrestrial Physics, 72, 1036
6. Sunspot cycles and Grand Minima [11]
   Sokoloff, Dmitry, Arlt, Rainer, Moss, David, Saar, Steven H. & Usoskin, Ilya, Solar and Stellar Variability: Impact on Earth and Planets (Editors: Kosovichev, Alexander G., Andrei, Alexandre H. & Rozelot, Jean-Pierre), IAU Symposium, 264, p. 111
7. Fluctuations of energetic particle flux during solar cycle based on measurements in the solar wind, in the magnetosphere, and at Earth [0]
   Starodubtsev, S. A. & Usoskin, I. G., Astronomy Letters, 36, 438
8. Regional millennial trend in the cosmic ray induced ionization of the troposphere [26]
   Usoskin, I. G., Mironova, I. A., Korte, M. & Kovaltsov, G. A., Journal of Atmospheric and Solar-Terrestrial Physics, 72, 19
9. Critical Comment on the Article by R. Rek ``The Maunder Minimum and the Sun as the Possible Source of Particles Creating Increased Abundance of the ¹⁴C Carbon Isotope'' [1]
   Usoskin, I. G. & Kovaltsov, G. A., Solar Physics, 261, 353
10. Cosmic ray induced ionization model CRAC:CRII: An extension to the upper atmosphere [64]
    Usoskin, Ilya G., Kovaltsov, Gennady A. & Mironova, Irina A., Journal of Geophysical Research (Atmospheres), 115, D10302

2009

1. EMMA - an underground cosmic-ray experiment [3]
   Enqvist, T., Bezrukov, L., Fynbo, H., Heikkilä, E., Inzhechik, L., Joutsenvaara, J., Jones, P., Jämsén, T., Kalliokoski, T., Keränen, P., Kolos, K., Kuusiniemi, P., Lubsandorzhiev, B., Olanterä, L., Petkov, V., Räihä, T., Sarkamo, J., Trzaska, W. & Usoskin, I., Nuclear Physics B Proceedings Supplements, 196, 255
2. Does sunspot number calibration by the “magnetic needle” make sense? [10]
   Mursula, K., Usoskin, I. & Yakovchouk, O., Journal of Atmospheric and Solar-Terrestrial Physics, 71, 1717
3. Grand Minima of Solar Activity and the Mean-Field Dynamo [61]
   Usoskin, I. G., Sokoloff, D. & Moss, D., Solar Physics, 254, 345
4. History of cosmic ray research in Finland [1]
   Usoskin, I. G., Valtonen, E., Vainio, R., Tanskanen, P. J. & Aurela, A. M., Advances in Space Research, 44, 1232
5. Ionization of the earth's atmosphere by solar and galactic cosmic rays [84]
   Usoskin, Ilya G., Desorgher, Laurent, Velinov, Peter, Storini, Marisa, Flückiger, Erwin O., Bütikofer, Rolf & Kovaltsov, Gennady A., Acta Geophysica, 57, 88
6. Short-term production and synoptic influences on atmospheric ⁷Be concentrations [34]
   Usoskin, Ilya G., Field, Christy V., Schmidt, Gavin A., LeppäNen, Ari-Pekka, Aldahan, Ala, Kovaltsov, Gennady A., Possnert, GöRan & Ungar, R. Kurt, Journal of Geophysical Research (Atmospheres), 114, D06108
7. On the common solar signal in different cosmogenic isotope data sets [41]
   Usoskin, Ilya G., Horiuchi, Kazuho, Solanki, Sami, Kovaltsov, Gennady A. & Bard, Edouard, Journal of Geophysical Research (Space Physics), 114, A03112
8. A Solar Cycle Lost in 1793-1800: Early Sunspot Observations Resolve the Old Mystery [86]
   Usoskin, Ilya G., Mursula, Kalevi, Arlt, Rainer & Kovaltsov, Gennady A., ApJ, 700, L154
9. Dynamics of the Earth's Particle Radiation Environment [181]
   Vainio, Rami, Desorgher, Laurent, Heynderickx, Daniel, Storini, Marisa, Flückiger, Erwin, Horne, Richard B., Kovaltsov, Gennady A., Kudela, Karel, Laurenza, Monica, McKenna-Lawlor, Susan, Rothkaehl, Hanna & Usoskin, Ilya G., Space Science Reviews, 147, 187

2008

1. Cosmic Ray Induced Ion Production in the Atmosphere [7]
   Bazilevskaya, G. A., Usoskin, I. G., Flückiger, E. O., Harrison, R. G., Desorgher, L., Bütikofer, R., Krainev, M. B., Makhmutov, V. S., Stozhkov, Y. I., Svirzhevskaya, A. K., Svirzhevsky, N. S. & Kovaltsov, G. A., Planetary Atmospheric Electricity (Editors: Leblanc, F., Aplin, K. L., Yair, Y., Harrison, R. G., Lebreton, J. P. & Blanc, M.), p.149
2. Cosmic Ray Induced Ion Production in the Atmosphere [233]
   Bazilevskaya, G. A., Usoskin, I. G., Flückiger, E. O., Harrison, R. G., Desorgher, L., Bütikofer, R., Krainev, M. B., Makhmutov, V. S., Stozhkov, Y. I., Svirzhevskaya, A. K., Svirzhevsky, N. S. & Kovaltsov, G. A., Space Science Reviews, 137, 149
3. EMMA a new underground cosmic-ray experiment [5]
   Enqvist, T., Joutsenvaara, J., Jämsén, T., Keränen, P., Kuusiniemi, P., Lehtola, M., Mattila, A., Narkilahti, J., Peltoniemi, J., Pennanen, A., Räihä, T., Sarkamo, J., Shen, C., Trzaska, W., Usoskin, I., Vaittinen, M. & Zhang, Z., Nuclear Physics B Proceedings Supplements, 175, 307
4. Fluctuations of cosmic rays and IMF in the vicinity of interplanetary shocks [4]
   Grigoryev, A. V., Starodubtsev, S. A., Grigoryev, V. G., Usoskin, I. G. & Mursula, K., Advances in Space Research, 41, 955
5. Variations of aerosol optical properties during the extreme solar event in January 2005 [23]
   Mironova, I. A., Desorgher, L., Usoskin, I. G., Flückiger, E. O. & Bütikofer, R., Geophysical Research Letters, 35, L18610
6. Solar Grand Minima and Random Fluctuations in Dynamo Parameters [77]
   Moss, D., Sokoloff, D., Usoskin, I. & Tutubalin, V., Solar Physics, 250, 221
7. Rapid cosmic ray fluctuations in real-time during the SEP events in December 2006 [0]
   Starodubtsev, S. A., Grigoryev, A. V., Usoskin, I. G. & Mursula, K., International Cosmic Ray Conference, International Cosmic Ray Conference, 1, p. 135
8. Role of centennial geomagnetic changes in local atmospheric ionization [42]
   Usoskin, I. G., Korte, M. & Kovaltsov, G. A., Geophysical Research Letters, 35, L05811
9. Forbush decreases of cosmic rays: Energy dependence of the recovery phase [43]
   Usoskin, I. G., Braun, I., Gladysheva, O. G., HöRandel, J. R., JäMséN, T., Kovaltsov, G. A. & Starodubtsev, S. A., Journal of Geophysical Research (Space Physics), 113, A07102
10. Cosmic rays and climate of the Earth: Possible connection [45]
    Usoskin, Ilya G. & Kovaltsov, Gennady A., Comptes Rendus Geoscience, 340, 441
11. Forbush decreases: Energy dependence of the recovery [0]
    Usoskin, Ilya G., Kovaltsov, Gennady A., Gladysheva, Olga G. & Jämsén, Teppo, International Cosmic Ray Conference, International Cosmic Ray Conference, 1, p. 327
12. Production of cosmogenic ⁷Be isotope in the atmosphere: Full 3-D modeling [60]
    Usoskin, Ilya G. & Kovaltsov, Gennady A., Journal of Geophysical Research (Atmospheres), 113, D12107
13. Numerical Model of Cosmic Ray Induced Ionization in the Atmosphere [0]
    Usoskin, Ilya G. & Kovaltsov, Gennady A., International Cosmic Ray Conference, International Cosmic Ray Conference, 1, p. 705
14. Stochastic simulation of cosmic ray modulation: Effect of a wavy HCS [0]
    Usoskin, Ilya G., Alanko-Huotari, Katja, Mursula, Kalevi & Kovaltsov, Gennady A., International Cosmic Ray Conference, International Cosmic Ray Conference, 1, p. 459
15. A History of Solar Activity over Millennia [83]
    Usoskin, Ilya G., Living Reviews in Solar Physics, 5, 3

2007

1. Cyclic variations of the heliospheric tilt angle and cosmic ray modulation [22]
   Alanko-Huotari, K., Usoskin, I. G., Mursula, K. & Kovaltsov, G. A., Advances in Space Research, 40, 1064
2. Stochastic simulation of cosmic ray modulation including a wavy heliospheric current sheet [44]
   Alanko-Huotari, K., Usoskin, I. G., Mursula, K. & Kovaltsov, G. A., Journal of Geophysical Research (Space Physics), 112, A08101
3. Underground cosmic-ray experiment EMMA [2]
   Enqvist, T., Joutsenvaara, J., Jämsén, T., Keränen, P., Kuusiniemi, P., Lehtola, M., Mattila, A., Narkilahti, J., Peltoniemi, J., Pennanen, A., Räihä, T., Sarkamo, J., Shen, C., Trzaska, W., Usoskin, I., Vaittinen, M. & Zhang, Z., Nuclear Physics B Proceedings Supplements, 165, 349
4. Case study of Forbush decreases: Energy dependence of the recovery [35]
   Jämsén, T., Usoskin, I. G., Räihä, T., Sarkamo, J. & Kovaltsov, G. A., Advances in Space Research, 40, 342
5. Regional cosmic ray induced ionization and geomagnetic field changes [17]
   Kovaltsov, G. A. & Usoskin, I. G., Advances in Geosciences, 13, 31
6. Introduction to Space Climate [19]
   Mursula, K., Usoskin, I. G. & Maris, G., Advances in Space Research, 40, 885
7. Fluctuations of cosmic rays and interplanetary magnetic field in the vicinity of interplanetary shock fronts [2]
   Starodubtsev, S. A., Grigor'ev, A. V., Grigor'ev, V. G., Usoskin, I. G. & Mursula, K., Bulletin of the Russian Academy of Sciences, Physics, 71, 991
8. (1) Preferred longitudes in sunspot activity (2) Preferred sunspot longitudes: non-axisymmetry and differential rotation [7]
   Usoskin, I. G., Berdyugina, S. V. & Poutanen, J., A&A, 464, 761
9. Long-term persistence of solar active longitudes and its implications for the solar dynamo theory [42]
   Usoskin, I. G., Berdyugina, S. V., Moss, D. & Sokoloff, D. D., Advances in Space Research, 40, 951
10. Grand minima and maxima of solar activity: new observational constraints [328]
    Usoskin, I. G., Solanki, S. K. & Kovaltsov, G. A., A&A, 471, 301
11. Effect of ENSO and volcanic events on the Sun cloud link [19]
    Voiculescu, Mirela, Usoskin, Ilya & Mursula, Kalevi, Advances in Space Research, 40, 1140

2006

1. Global Heliospheric Parameters and Cosmic-Ray Modulation: An Empirical Relation for the Last Decades [35]
   Alanko-Huotari, K., Mursula, K., Usoskin, I. G. & Kovaltsov, G. A., Solar Physics, 238, 391
2. Active longitudes, nonaxisymmetric dynamos and phase mixing [57]
   Berdyugina, S. V., Moss, D., Sokoloff, D. & Usoskin, I. G., A&A, 445, 703
3. Establishing a Cosmic Ray Station and Other Space Research Facilities in Ethiopia [0]
   Damtie, B., Bosinger, T. & Usoskin, I., African Skies, 10, 29
4. The Solar Cycle at the Maunder Minimum Epoch [8]
   Miyahara, Hiroko, Sokoloff, Dmitry & Usoskin, Ilya G., Advances in Geosciences, Volume 2: Solar Terrestrial (ST) (Editors: Duldig, Marc), 2, p. 1
5. Long-term modulation of the cosmic ray fluctuation spectrum [3]
   Starodubtsev, S. A., Usoskin, I. G., Grigoryev, A. V. & Mursula, K., Annales Geophysicae, 24, 779
6. Correlation between clouds at different altitudes and solar activity: Fact or Artifact? [43]
   Usoskin, I. G., Voiculescu, M., Kovaltsov, G. A. & Mursula, K., Journal of Atmospheric and Solar-Terrestrial Physics, 68, 2164
7. Solar activity reconstructed over the last 7000 years: The influence of geomagnetic field changes [55]
   Usoskin, I. G., Solanki, S. K. & Korte, M., Geophysical Research Letters, 33, L08103
8. Long-term solar activity reconstructions: direct test by cosmogenic ⁴⁴Ti in meteorites [31]
   Usoskin, I. G., Solanki, S. K., Taricco, C., Bhandari, N. & Kovaltsov, G. A., A&A, 457, L25
9. Link Between Cosmic Rays and Clouds on Different Time Scales [0]
   Usoskin, Ilya G. & Kovaltsov, Gennady A., Advances in Geosciences, Volume 2: Solar Terrestrial (ST) (Editors: Duldig, Marc), 2, p. 321
10. Cosmic ray induced ionization in the atmosphere: Full modeling and practical applications [140]
    Usoskin, Ilya G. & Kovaltsov, Gennady A., Journal of Geophysical Research (Atmospheres), 111, D21206
11. Solar proton events in cosmogenic isotope data [72]
    Usoskin, Ilya G., Solanki, Sami K., Kovaltsov, Gennady A., Beer, Jürg & Kromer, Bernd, Geophysical Research Letters, 33, L08107
12. Different response of clouds to solar input [48]
    Voiculescu, Mirela, Usoskin, Ilya G. & Mursula, Kalevi, Geophysical Research Letters, 33, L21802
13. On possible drivers of Sun-induced climate changes [39]
    de Jager, Cornelis & Usoskin, Ilya, Journal of Atmospheric and Solar-Terrestrial Physics, 68, 2053

2005

1. The role of drifts in the galactic cosmic ray transport [0]
   Alanko, K., Usoskin, I. G. & Mursula, K., 29th International Cosmic Ray Conference (ICRC29), Volume 2 (Editors: Acharya, B. Sripathi, Gupta, Sunil, Jagadeesan, P., Jain, Atul, Karthikeyan, S., Morris, Samuel & Tonwar, Suresh), International Cosmic Ray Conference, 2, p. 53
2. Measurements of muon flux in the Pyhäsalmi underground laboratory [22]
   Enqvist, T., Mattila, A., Föhr, V., Jämsén, T., Lehtola, M., Narkilahti, J., Joutsenvaara, J., Nurmenniemi, S., Peltoniemi, J., Remes, H., Sarkamo, J., Shen, C. & Usoskin, I., Nuclear Instruments and Methods in Physics Research A, 554, 286
3. Coronal Mass Ejections and Ground Level Enhancements [22]
   Gopalswamy, N., Xie, H., Yashiro, S. & Usoskin, I., 29th International Cosmic Ray Conference (ICRC29), Volume 1 (Editors: Acharya, B. Sripathi, Gupta, Sunil, Jagadeesan, P., Jain, Atul, Karthikeyan, S., Morris, Samuel & Tonwar, Suresh), International Cosmic Ray Conference, 1, p. 169
4. Climate: How unusual is today's solar activity? (reply) [17]
   Solanki, S. K., Usoskin, I. G., Kromer, B., Schüssler, M. & Beer, J., Nature, 436, 4
5. Long-Term Modulation of the Cosmic Ray Fluctuation Spectrum: Spacecraft Measurements [1]
   Starodubtsev, S. A., Usoskin, I. G., Grigoryev, A. V. & Mursula, K., 29th International Cosmic Ray Conference (ICRC29), Volume 2 (Editors: Acharya, B. Sripathi, Gupta, Sunil, Jagadeesan, P., Jain, Atul, Karthikeyan, S., Morris, Samuel & Tonwar, Suresh), International Cosmic Ray Conference, 2, p. 247
6. Real-Time Cosmic Ray Distributed (RECORD) database: A status report [0]
   Starodubtsev, S. A., Turpanov, A. A., Kudela, K., Usoskin, I. G., Yanke, V. G., Grigoryev, V. G., Neustroyev, N. I., Egorov, A. G. & Prikhodko, A. N., 29th International Cosmic Ray Conference (ICRC29), Volume 2 (Editors: Acharya, B. Sripathi, Gupta, Sunil, Jagadeesan, P., Jain, Atul, Karthikeyan, S., Morris, Samuel & Tonwar, Suresh), International Cosmic Ray Conference, 2, p. 465
7. Solar activity, cosmic rays, and Earth's temperature: A millennium-scale comparison [44]
   Usoskin, I. G., Schüssler, M., Solanki, S. K. & Mursula, K., Journal of Geophysical Research (Space Physics), 110, A10102
8. Solar activity over the last 1150 years: does it correlate with climate? [3]
   Usoskin, I. G., Schüssler, M., Solanki, S. K. & Mursula, K., 13th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun (Editors: Favata, F., Hussain, G. A. J. & Battrick, B.), ESA Special Publication, 560, p. 19
9. Preferred sunspot longitudes: non-axisymmetry and differential rotation [66]
   Usoskin, I. G., Berdyugina, S. V. & Poutanen, J., A&A, 441, 347
10. Heliospheric modulation of cosmic rays: Monthly reconstruction for 1951-2004 [322]
    Usoskin, Ilya G., Alanko-Huotari, Katja, Kovaltsov, Gennady A. & Mursula, Kalevi, Journal of Geophysical Research (Space Physics), 110, A12108

2004

1. Persistent Active Longitudes in Sunspot Activity: Sun-as-a-Star Approach [1]
   Berdyugina, S. B. & Usoskin, I. G., Stars as Suns : Activity, Evolution and Planets (Editors: Dupree, Andrea K. & Benz, Arnold O.), IAU Symposium, 219, p. 128
2. Solar Modulation Models:. a Comparison Through a 2d Stochastic Simulation [2]
   Bobik, P., Gervasi, M., Grandi, D., Rancoita, P. G. & Usoskin, I. G., Astroparticle, Particle and Space Physics, Detectors and Medical Physics Applications (Editors: Barone, M., Borchi, E., Leroy, C., Rancoita, P.-G., Riboni, P.-L. & Ruchti, R.), p. 23
3. An Upper Limit on Sunspot Activity During the Maunder Minimum [34]
   Kovaltsov, G. A., Usoskin, I. G. & Mursula, K., Solar Physics, 224, 95
4. On Magnetospheric Transmissivity of Cosmic Rays [52]
   Kudela, K. & Usoskin, I. G., Czechoslovak Journal of Physics, 54, 239
5. Unusual activity of the Sun during recent decades compared to the previous 11,000 years [658]
   Solanki, S. K., Usoskin, I. G., Kromer, B., Schüssler, M. & Beer, J., Nature, 431, 1084
6. Rapid Cosmic Ray Fluctuations: Evidence for Cyclic Behaviour [10]
   Starodubtsev, S. A., Usoskin, I. G. & Mursula, K., Solar Physics, 224, 335
7. Cosmic ray-induced ionization in the atmosphere: spatial and temporal changes [71]
   Usoskin, I. G., Gladysheva, O. G. & Kovaltsov, G. A., Journal of Atmospheric and Solar-Terrestrial Physics, 66, 1791
8. Long-Term Solar Activity: Direct and Indirect Study [37]
   Usoskin, I. G. & Kovaltsov, G. A., Solar Physics, 224, 37
9. Latitudinal dependence of low cloud amount on cosmic ray induced ionization [57]
   Usoskin, I. G., Marsh, N., Kovaltsov, G. A., Mursula, K. & Gladysheva, O. G., Geophysical Research Letters, 31, L16109
10. Reconstruction of solar activity for the last millennium using ¹⁰Be data [92]
    Usoskin, I. G., Mursula, K., Solanki, S., Schüssler, M. & Alanko, K., A&A, 413, 745
11. Usoskin et al. Reply: [5]
    Usoskin, Ilya G., Solanki, Sami K., Schüssler, Manfred & Mursula, Kalevi, Physical Review Letters, 92, 199002

2003

1. Heliospheric modulation strength: effective neutron monitor energy [27]
   Alanko, K., Usoskin, I. G., Mursula, K. & Kovaltsov, G. A., Advances in Space Research, 32, 615
2. Effective Energy of Neutron Monitors [0]
   Alanko, K. M., Usoskin, I. G., Mursula, K. & Kovaltsov, G. A., International Cosmic Ray Conference, International Cosmic Ray Conference, 7, p. 3901
3. A 2D Stochastic Simulation of Galactic Cosmic Rays Transport in the Heliosphere [0]
   Alanko, K. M., Usoskin, Ilya, Mursula, Kalevi & Kovaltsov, Gennady A., International Cosmic Ray Conference, International Cosmic Ray Conference, 7, p. 3851
4. Active longitudes in sunspot activity: Century scale persistence [224]
   Berdyugina, S. V. & Usoskin, I. G., A&A, 405, 1121
5. 2D stochastic simulation model of cosmic ray modulation: comparison with experimental data [3]
   Bobik, P., Gervasi, M., Grandi, D., Rancoita, P. G. & Usoskin, I. G., Solar Variability as an Input to the Earth's Environment (Editors: Wilson, Andrew), ESA Special Publication, 535, p. 637
6. Neutron monitor database in real time [1]
   Kozlov, Valery, Kudela, Karel, Starodubtsev, Sergei, Turpanov, Alexey, Usoskin, Ilya & Yanke, Victor, Solar Variability as an Input to the Earth's Environment (Editors: Wilson, Andrew), ESA Special Publication, 535, p. 675
7. Reconstructing the long-term cosmic ray intensity: linear relations do not work [21]
   Mursula, K., Usoskin, I. G. & Kovaltsov, G. A., Annales Geophysicae, 21, 863
8. Long-Term Modulation of the Galactic Cosmic-Ray Fluctuation Spectrum [8]
   Starodubtsev, S. A. & Usoskin, I. G., Astronomy Letters, 29, 594
9. REal-time COsmic Ray Database (RECORD) [0]
   Usoskin, I., Kozlov, Valery, Ksenofontov, Leonid, Kudela, Karel, Starodubtsev, Sergei, Turpanov, Alexey & Yanke, Victor, International Cosmic Ray Conference, International Cosmic Ray Conference, 6, p. 3473
10. The lost sunspot cycle: Reanalysis of sunspot statistics [34]
    Usoskin, I. G., Mursula, K. & Kovaltsov, G. A., A&A, 403, 743
11. Reconstruction of Monthly and Yearly Group Sunspot Numbers From Sparse Daily Observations [38]
    Usoskin, I. G., Mursula, K. & Kovaltsov, G. A., Solar Physics, 218, 295
12. Long-Term Cosmic Ray Intensities: Physical Reconstruction [0]
    Usoskin, I. G., Mursula, K., Solanki, S. K., Schuessler, M. & Kovaltsov, G. A., International Cosmic Ray Conference, International Cosmic Ray Conference, 7, p. 4041
13. Long-Term Cosmic Ray Modulation by Heliospheric Parameters: Non-linear Relations [1]
    Usoskin, I. G., Kovaltsov, G. A., Mursula, K. & Alkano, K., International Cosmic Ray Conference, International Cosmic Ray Conference, 7, p. 3803
14. New standpoints in long-term solar cycle evolution: a review [3]
    Usoskin, I. G. & Mursula, K., Solar Variability as an Input to the Earth's Environment (Editors: Wilson, Andrew), ESA Special Publication, 535, p. 25
15. Long-Term Solar Cycle Evolution: Review of Recent Developments [148]
    Usoskin, I. G. & Mursula, K., Solar Physics, 218, 319
16. On the reliability of monthly/yearly means calculated from sparse daily sunspot numbers [0]
    Usoskin, Ilya G., Mursula, Kalevi & Kovaltsov, Gennady A., Solar Variability as an Input to the Earth's Environment (Editors: Wilson, Andrew), ESA Special Publication, 535, p. 165
17. Galactic Cosmic Ray Fluctuations: Long-Term Modulation of Power Spectrum [0]
    Usoskin, Ilya G. & Starodubtsev, S., International Cosmic Ray Conference, International Cosmic Ray Conference, 7, p. 3905
18. Millennium-Scale Sunspot Number Reconstruction: Evidence for an Unusually Active Sun since the 1940s [160]
    Usoskin, Ilya G., Solanki, Sami K., Schüssler, Manfred, Mursula, Kalevi & Alanko, Katja, Physical Review Letters, 91, 211101
19. The lost sunspot cycle: reanalysis of sunspot statistics [0]
    Usoskin, Ilya G., Mursula, Kalevi & Kovaltsov, Gennady A., Solar Variability as an Input to the Earth's Environment (Editors: Wilson, Andrew), ESA Special Publication, 535, p. 161

2002

1. The Alpha Magnetic Spectrometer (AMS) [36]
   Alcaraz, J., Alpat, B., Ambrosi, G., Anderhub, H., Ao, L., Arefiev, A., Azzarello, P., Babucci, E., Baldini, L., Basile, M., Barancourt, D., Barao, F., Barbier, G., Barreira, G., Battiston, R., Becker, R., Becker, U., Bellagamba, L., Bene, P., Berdugo, J., Berges, P., Bertucci, B., Biland, A., Bizzaglia, S., Blasko, S., Boella, G., Boschini, M., Bourquin, M., Brocco, L., Bruni, G., Buenerd, M., Burger, J. D., Burger, W. J., Cai, X. D., Camps, C., Cannarsa, P., Capell, M., Casadei, D., Casaus, J., Castellini, G., Cecchi, C., Chang, Y. H., Chen, H. F., Chen, H. S., Chen, Z. G., Chernoplekov, N. A., Chiueh, T. H., Chuang, Y. L., Cindolo, F., Commichau, V., Contin, A., Crespo, P., Cristinziani, M., da Cunha, J. P., Dai, T. S., Deus, J. D., Dinu, N., Djambazov, L., DAntone, I., Dong, Z. R., Emonet, P., Engelberg, J., Eppling, F. J., Eronen, T., Esposito, G., Extermann, P., Favier, J., Fiandrini, E., Fisher, P. H., Fluegge, G., Fouque, N., Galaktionov, Yu., Gervasi, M., Giusti, P., Grandi, D., Grimm, O., Gu, W. Q., Hangarter, K., Hasan, A., Hermel, V., Hofer, H., Huang, M. A., Hungerford, W., Ionica, M., Ionica, R., Jongmanns, M., Karlamaa, K., Karpinski, W., Kenney, G., Kenny, J., Kim, W., Klimentov, A., Kossakowski, R., Koutsenko, V., Kraeber, M., Laborie, G., Laitinen, T., Lamanna, G., Laurenti, G., Lebedev, A., Lee, S. C., Levi, G., Levtchenko, P., Liu, C. L., Liu, H. T., Lopes, I., Lu, G., Lu, Y. S., Lübelsmeyer, K., Luckey, D., Lustermann, W., Maña, C., Margotti, A., Mayet, F., McNeil, R. R., Meillon, B., Menichelli, M., Mihul, A., Mourao, A., Mujunen, A., Palmonari, F., Papi, A., Park, I. H., Pauluzzi, M., Pauss, F., Perrin, E., Pesci, A., Pevsner, A., Pimenta, M., Plyaskin, V., Pojidaev, V., Postolache, V., Produit, N., Rancoita, P. G., Rapin, D., Raupach, F., Ren, D., Ren, Z., Ribordy, M., Richeux, J. P., Riihonen, E., Ritakari, J., Roeser, U., Roissin, C., Sagdeev, R., Sartorelli, G., Schultz von Dratzig, A., Schwering, G., Scolieri, G., Seo, E. S., Shoutko, V., Shoumilov, E., Siedling, R., Son, D., Song, T., Steuer, M., Sun, G. S., Suter, H., Tang, X. W., Ting, Samuel C. C., Ting, S. M., Tornikoski, M., Torsti, J., Tr umper, J., Ulbricht, J., Urpo, S., Usoskin, I., Valtonen, E., Vandenhirtz, J., Velcea, F., Velikhov, E., Verlaat, B., Vetlitsky, I., Vezzu, F., Vialle, J. P., Viertel, G., Vite, D., Von Gunten, H., Wicki, S. Waldmeier, Wallraff, W., Wang, B. C., Wang, J. Z., Wang, Y. H., Wiik, K., Williams, C., Wu, S. X., Xia, P. C., Yan, J. L., Yan, L. G., Yang, C. G., Yang, M., Ye, S. W., Yeh, P., Xu, Z. Z., Zhang, H. Y., Zhang, Z. P., Zhao, D. X., Zhu, G. Y., Zhu, W. Z., Zhuang, H. L., Zichichi, A. & Zimmermann, B., Nuclear Instruments and Methods in Physics Research A, 478, 119
2. Nitrate abundance in polar ice during the great solar activity minimum [4]
   Gladysheva, O. G., Kocharov, G. E., Kovaltsov, G. A. & Usoskin, I. G., Advances in Space Research, 29, 1707
3. Long-term cosmic ray intensity vs. solar proxies: a simple linear relation does not work [0]
   Mursula, K., Usoskin, I. G. & Kovaltsov, G. A., Solspa 2001, Proceedings of the Second Solar Cycle and Space Weather Euroconference (Editors: Sawaya-Lacoste, Huguette), ESA Special Publication, 477, p. 463
4. A 22-year cycle in sunspot activity [6]
   Mursula, K., Usoskin, I. G. & Kovaltsov, G. A., Advances in Space Research, 29, 1979
5. Simulating regularity and randomness in sunspot activity [1]
   Usoskin, I. G., Mursala, K. & Kovaltsov, G. A., Solar Variability: From Core to Outer Frontiers (Editors: Wilson, A.), ESA Special Publication, 2, p. 863
6. Lost sunspot cycle in the beginning of Dalton minimum: New evidence and consequences [33]
   Usoskin, I. G., Mursula, K. & Kovaltsov, G. A., Geophysical Research Letters, 29, 2183
7. Heliospheric modulation strength during the neutron monitor era [43]
   Usoskin, I. G., Alanko, K., Mursula, K. & Kovaltsov, G. A., Solar Physics, 207, 389
8. The start of the Dalton minimum: Was one sunspot cycle lost in late XVIII century? [2]
   Usoskin, I. G., Mursula, K. & Kovaltsov, G. A., Solspa 2001, Proceedings of the Second Solar Cycle and Space Weather Euroconference (Editors: Sawaya-Lacoste, Huguette), ESA Special Publication, 477, p. 257
9. A physical reconstruction of cosmic ray intensity since 1610 [111]
   Usoskin, Ilya G., Mursula, Kalevi, Solanki, Sami K., Schüssler, Manfred & Kovaltsov, Gennady A., Journal of Geophysical Research (Space Physics), 107, 1374

2001

1. Geomagnetic cutoff Penumbra structure: approach by transmissivity function [1]
   Bobik, P., Kudela, K. & Usoskin, I., International Cosmic Ray Conference, International Cosmic Ray Conference, 10, p. 4056
2. Evidence for charge drift modulation at intermediate solar activity from the flux variation of protons and α particles [18]
   Boella, G., Gervasi, M., Mariani, S., Rancoita, P. G. & Usoskin, I. G., Journal of Geophysical Research, 106, 29355
3. The MUG experiment for observing muon fluxes underground: test data and development plans [0]
   Elo, A.-M., Jaemsen, T., Kangas, J., Mursula, K., Peltoniemi, J., Usoskin, I. G., Vallinkoski, M. & Valtonen, E., International Cosmic Ray Conference, International Cosmic Ray Conference, 3, p. 1249
4. Nitrate abundance in polar snow during last 50 year: connection to atmospheric ionization [0]
   Gladysheva, O. G., Dmitriev, P. B., Usoskin, I. G., Barkov, N. I., Ekaykin, A. A. & Nikanorov, V. V., International Cosmic Ray Conference, International Cosmic Ray Conference, 10, p. 4191
5. A new multilevel experiment MUG for observing muon fluxes underground [0]
   Jaemsen, T., Elo, A.-M., Kangas, J., Mursula, K., Peltoniemi, J., Usoskin, I. G., Vallinkoski, M. & Valtonen, E., International Cosmic Ray Conference, International Cosmic Ray Conference, 3, p. 1250
6. Cosmic ray intensity vs. solar indices: Is there a simple linear relation? [1]
   Mursula, K., Usoskin, I. G. & Kovaltsov, G. A., International Cosmic Ray Conference, International Cosmic Ray Conference, 9, p. 3838
7. Persistent 22-year cycle in sunspot activity: Evidence for a relic solar magnetic field [80]
   Mursula, K., Usoskin, I. G. & Kovaltsov, G. A., Solar Physics, 198, 51
8. Was one sunspot cycle lost in late XVIII century? [68]
   Usoskin, I. G., Mursula, K. & Kovaltsov, G. A., A&A, 370, L31
9. On-Line Database of Cosmic Ray Intensities* [4]
   Usoskin, I. G., Mursula, K. & Kangas, J., International Cosmic Ray Conference, International Cosmic Ray Conference, 9, p. 3842
10. Heliospheric modulation strength during the neutron monitor epoch [1]
    Usoskin, I. G., Alanko, K., Mursula, K., Kudela, K. & Kovaltsov, G. A., International Cosmic Ray Conference, International Cosmic Ray Conference, 9, p. 3810
11. Odd and even cycles in cosmic rays and solar activity [0]
    Usoskin, I. G., Mursula, K. & Kovaltsov, G. A., International Cosmic Ray Conference, International Cosmic Ray Conference, 9, p. 3791
12. Sensitivity of a neutron monitor to galactic cosmic rays [3]
    Usoskin, I. G., Bobik, P., Gladysheva, O. G., Kananen, H., Kovaltsov, G. A. & Kudela, K., Advances in Space Research, 27, 565
13. Simulation of Sunspot Activity During Active Sun and Great Minima Using Regular, Random and Relic Fields [9]
    Usoskin, I. G., Mursula, K. & Kovaltsov, G. A., Solar Physics, 199, 187
14. Dependence of cosmic rays on solar activity for odd and even solar cycles [35]
    Usoskin, I. G., Mursula, K., Kananen, H. & Kovaltsov, G. A., Advances in Space Research, 27, 571
15. Heliospheric modulation of cosmic rays and solar activity during the Maunder minimum [74]
    Usoskin, Ilya G., Mursula, Kalevi & Kovaltsov, Gennady A., Journal of Geophysical Research, 106, 16039
16. The GLE of 14 July 2000: comparative analysis of increase effect on close neutron monitors in Apatity and Oulu [3]
    Vashenyuk, E. V., Gvozdevsky, B. B., Phelkin, V. V., Usoskin, I. G., Mursula, K. & Kovaltsov, G. A., International Cosmic Ray Conference, International Cosmic Ray Conference, 8, p. 3383

2000

1. Helium in near Earth orbit [153]
   AMS Collaboration, Alcaraz, J., Alpat, B., Ambrosi, G., Anderhub, H., Ao, L., Arefiev, A., Azzarello, P., Babucci, E., Baldini, L., Basile, M., Barancourt, D., Barao, F., Barbier, G., Barreira, G., Battiston, R., Becker, R., Becker, U., Bellagamba, L., Béné, P., Berdugo, J., Berges, P., Bertucci, B., Biland, A., Bizzaglia, S., Blasko, S., Boella, G., Boschini, M., Bourquin, M., Brocco, L., Bruni, G., Buenerd, M., Burger, J. D., Burger, W. J., Cai, X. D., Camps, C., Cannarsa, P., Capell, M., Casadei, D., Casaus, J., Castellini, G., Cecchi, C., Chang, Y. H., Chen, H. F., Chen, H. S., Chen, Z. G., Chernoplekov, N. A., Chiueh, T. H., Chuang, Y. L., Cindolo, F., Commichau, V., Contin, A., Cristinziani, M., da Cunha, J. P., Dai, T. S., Deus, J. D., Dinu, N., Djambazov, L., D'Antone, I., Dong, Z. R., Emonet, P., Engelberg, J., Eppling, F. J., Eronen, T., Esposito, G., Extermann, P., Favier, J., Fiandrini, E., Fisher, P. H., Fluegge, G., Fouque, N., Galaktionov, Yu., Gervasi, M., Giusti, P., Grandi, D., Grimm, O., Gu, W. Q., Hangarter, K., Hasan, A., Hermel, V., Hofer, H., Huang, M. A., Hungerford, W., Ionica, M., Ionica, R., Jongmanns, M., Karlamaa, K., Karpinski, W., Kenney, G., Kenny, J., Kim, W., Klimentov, A., Kossakowski, R., Koutsenko, V., Kraeber, M., Laborie, G., Laitinen, T., Lamanna, G., Laurenti, G., Lebedev, A., Lee, S. C., Levi, G., Levtchenko, P., Liu, C. L., Liu, H. T., Lopes, I., Lu, G., Lu, Y. S., Lübelsmeyer, K., Luckey, D., Lustermann, W., Maña, C., Margotti, A., Mayet, F., McNeil, R. R., Meillon, B., Menichelli, M., Mihul, A., Mourao, A., Mujunen, A., Palmonari, F., Papi, A., Park, I. H., Pauluzzi, M., Pauss, F., Perrin, E., Pesci, A., Pevsner, A., Pimenta, M., Plyaskin, V., Pojidaev, V., Pohl, M., Postolache, V., Produit, N., Rancoita, P. G., Rapin, D., Raupach, F., Ren, D., Ren, Z., Ribordy, M., Richeux, J. P., Riihonen, E., Ritakari, J., Roeser, U., Roissin, C., Sagdeev, R., Sartorelli, G., Schultz von Dratzig, A., Schwering, G., Scolieri, G., Seo, E. S., Shoutko, V., Shoumilov, E., Siedling, R., Son, D., Song, T., Steuer, M., Sun, G. S., Suter, H., Tang, X. W., Ting, S. C. C., Ting, S. M., Tornikoski, M., Torsti, J., Trümper, J., Ulbricht, J., Urpo, S., Usoskin, I., Valtonen, E., Vandenhirtz, J., Velcea, F., Velikhov, E., Verlaat, B., Vetlitsky, I., Vezzu, F., Vialle, J. P., Viertel, G., Vité, D., Von Gunten, H., Waldmeier Wicki, S., Wallraff, W., Wang, B. C., Wang, J. Z., Wang, Y. H., Wiik, K., Williams, C., Wu, S. X., Xia, P. C., Yan, J. L., Yan, L. G., Yang, C. G., Yang, M., Ye, S. W., Yeh, P., Xu, Z. Z., Zhang, H. Y., Zhang, Z. P., Zhao, D. X., Zhu, G. Y., Zhu, W. Z., Zhuang, H. L., Zichichi, A., Zimmermann, B. & Zuccon, P., Physics Letters B, 494, 193
2. Cosmic protons [279]
   Alcaraz, J., Alpat, B., Ambrosi, G., Anderhub, H., Ao, L., Arefiev, A., Azzarello, P., Babucci, E., Baldini, L., Basile, M., Barancourt, D., Barao, F., Barbier, G., Barreira, G., Battiston, R., Becker, R., Becker, U., Bellagamba, L., Béné, P., Berdugo, J., Berges, P., Bertucci, B., Biland, A., Bizzaglia, S., Blasko, S., Boella, G., Boschini, M., Bourquin, M., Brocco, L., Bruni, G., Buenerd, M., Burger, J. D., Burger, W. J., Cai, X. D., Camps, C., Cannarsa, P., Capell, M., Casadei, D., Casaus, J., Castellini, G., Cecchi, C., Chang, Y. H., Chen, H. F., Chen, H. S., Chen, Z. G., Chernoplekov, N. A., Chiueh, T. H., Chuang, Y. L., Cindolo, F., Commichau, V., Contin, A., Crespo, P., Cristinziani, M., da Cunha, J. P., Dai, T. S., Deus, J. D., Dinu, N., Djambazov, L., D'Antone, I., Dong, Z. R., Emonet, P., Engelberg, J., Eppling, F. J., Eronen, T., Esposito, G., Extermann, P., Favier, J., Fiandrini, E., Fisher, P. H., Fluegge, G., Fouque, N., Galaktionov, Y., Gervasi, M., Giusti, P., Grandi, D., Grimm, O., Gu, W. Q., Hangarter, K., Hasan, A., Hermel, V., Hofer, H., Huang, M. A., Hungerford, W., Ionica, M., Ionica, R., Jongmanns, M., Karlamaa, K., Karpinski, W., Kenney, G., Kenny, J., Kim, W., Klimentov, A., Kossakowski, R., Koutsenko, V., Kraeber, M., Laborie, G., Laitinen, T., Lamanna, G., Laurenti, G., Lebedev, A., Lee, S. C., Levi, G., Levtchenko, P., Liu, C. L., Liu, H. T., Lopes, I., Lu, G., Lu, Y. S., Lübelsmeyer, K., Luckey, D., Lustermann, W., Maña, C., Margotti, A., Mayet, F., McNeil, R. R., Meillon, B., Menichelli, M., Mihul, A., Mourao, A., Mujunen, A., Palmonari, F., Papi, A., Park, I. H., Pauluzzi, M., Pauss, F., Perrin, E., Pesci, A., Pevsner, A., Pimenta, M., Plyaskin, V., Pojidaev, V., Pohl, M., Postolache, V., Produit, N., Rancoita, P. G., Rapin, D., Raupach, F., Ren, D., Ren, Z., Ribordy, M., Richeux, J. P., Riihonen, E., Ritakari, J., Roeser, U., Roissin, C., Sagdeev, R., Sartorelli, G., Schultz von Dratzig, A., Schwering, G., Scolieri, G., Seo, E. S., Shoutko, V., Shoumilov, E., Siedling, R., Son, D., Song, T., Steuer, M., Sun, G. S., Suter, H., Tang, X. W., Ting, S. C. C., Ting, S. M., Tornikoski, M., Torsti, J., Trümper, J., Ulbricht, J., Urpo, S., Usoskin, I., Valtonen, E., Vandenhirtz, J., Velcea, F., Velikhov, E., Verlaat, B., Vetlitsky, I., Vezzu, F., Vialle, J. P., Viertel, G., Vité, D., Von Gunten, H., Waldmeier Wicki, S., Wallraff, W., Wang, B. C., Wang, J. Z., Wang, Y. H., Wiik, K., Williams, C., Wu, S. X., Xia, P. C., Yan, J. L., Yan, L. G., Yang, C. G., Yang, M., Ye, S. W., Yeh, P., Xu, Z. Z., Zhang, H. Y., Zhang, Z. P., Zhao, D. X., Zhu, G. Y., Zhu, W. Z., Zhuang, H. L., Zichichi, A. & Zimmermann, B., Physics Letters B, 490, 27
3. Leptons in near earth orbit [250]
   Alcaraz, J., Alpat, B., Ambrosi, G., Anderhub, H., Ao, L., Arefiev, A., Azzarello, P., Babucci, E., Baldini, L., Basile, M., Barancourt, D., Barao, F., Barbier, G., Barreira, G., Battiston, R., Becker, R., Becker, U., Bellagamba, L., Béné, P., Berdugo, J., Berges, P., Bertucci, B., Biland, A., Bizzaglia, S., Blasko, S., Boella, G., Boschini, M., Bourquin, M., Brocco, L., Bruni, G., Buenerd, M., Burger, J. D., Burger, W. J., Cai, X. D., Camps, C., Cannarsa, P., Capell, M., Casadei, D., Casaus, J., Castellini, G., Cecchi, C., Chang, Y. H., Chen, H. F., Chen, H. S., Chen, Z. G., Chernoplekov, N. A., Chiueh, T. H., Chuang, Y. L., Cindolo, F., Commichau, V., Contin, A., Crespo, P., Cristinziani, M., da Cunha, J. P., Dai, T. S., Deus, J. D., Dinu, N., Djambazov, L., D'Antone, I., Dong, Z. R., Emonet, P., Engelberg, J., Eppling, F. J., Eronen, T., Esposito, G., Extermann, P., Favier, J., Fiandrini, E., Fisher, P. H., Fluegge, G., Fouque, N., Galaktionov, Y., Gervasi, M., Giusti, P., Grandi, D., Grimm, O., Gu, W. Q., Hangarter, K., Hasan, A., Hermel, V., Hofer, H., Huang, M. A., Hungerford, W., Ionica, M., Ionica, R., Jongmanns, M., Karlamaa, K., Karpinski, W., Kenney, G., Kenny, J., Kim, W., Klimentov, A., Kossakowski, R., Koutsenko, V., Kraeber, M., Laborie, G., Laitinen, T., Lamanna, G., Laurenti, G., Lebedev, A., Lee, S. C., Levi, G., Levtchenko, P., Liu, C. L., Liu, H. T., Lopes, I., Lu, G., Lu, Y. S., Lübelsmeyer, K., Luckey, D., Lustermann, W., Maña, C., Margotti, A., Mayet, F., McNeil, R. R., Meillon, B., Menichelli, M., Mihul, A., Mourao, A., Mujunen, A., Palmonari, F., Papi, A., Park, I. H., Pauluzzi, M., Pauss, F., Perrin, E., Pesci, A., Pevsner, A., Pimenta, M., Plyaskin, V., Pojidaev, V., Postolache, V., Produit, N., Rancoita, P. G., Rapin, D., Raupach, F., Ren, D., Ren, Z., Ribordy, M., Richeux, J. P., Riihonen, E., Ritakari, J., Roeser, U., Roissin, C., Sagdeev, R., Sartorelli, G., Schultz von Dratzig, A., Schwering, G., Scolieri, G., Seo, E. S., Shoutko, V., Shoumilov, E., Siedling, R., Son, D., Song, T., Steuer, M., Sun, G. S., Suter, H., Tang, X. W., Ting, S. C. C., Ting, S. M., Tornikoski, M., Torsti, J., Trümper, J., Ulbricht, J., Urpo, S., Usoskin, I., Valtonen, E., Vandenhirtz, J., Velcea, F., Velikhov, E., Verlaat, B., Vetlitsky, I., Vezzu, F., Vialle, J. P., Viertel, G., Vité, D., Von Gunten, H., Waldmeier Wicki, S., Wallraff, W., Wang, B. C., Wang, J. Z., Wang, Y. H., Wiik, K., Williams, C., Wu, S. X., Xia, P. C., Yan, J. L., Yan, L. G., Yang, C. G., Yang, M., Ye, S. W., Yeh, P., Xu, Z. Z., Zhang, H. Y., Zhang, Z. P., Zhao, D. X., Zhu, G. Y., Zhu, W. Z., Zhuang, H. L., Zichichi, A. & Zimmermann, B., Physics Letters B, 484, 10
4. Protons in near earth orbit [193]
   Alcaraz, J., Alvisi, D., Alpat, B., Ambrosi, G., Anderhub, H., Ao, L., Arefiev, A., Azzarello, P., Babucci, E., Baldini, L., Basile, M., Barancourt, D., Barao, F., Barbier, G., Barreira, G., Battiston, R., Becker, R., Becker, U., Bellagamba, L., Béné, P., Berdugo, J., Berges, P., Bertucci, B., Biland, A., Bizzaglia, S., Blasko, S., Boella, G., Boschini, M., Bourquin, M., Bruni, G., Buenerd, M., Burger, J. D., Burger, W. J., Cai, X. D., Cavalletti, R., Camps, C., Cannarsa, P., Capell, M., Casadei, D., Casaus, J., Castellini, G., Chang, Y. H., Chen, H. F., Chen, H. S., Chen, Z. G., Chernoplekov, N. A., Chiarini, A., Chiueh, T. H., Chuang, Y. L., Cindolo, F., Commichau, V., Contin, A., Cotta-Ramusino, A., Crespo, P., Cristinziani, M., da Cunha, J. P., Dai, T. S., Deus, J. D., Dinu, N., Djambazov, L., D'Antone, I., Dong, Z. R., Emonet, P., Engelberg, J., Eppling, F. J., Eronen, T., Esposito, G., Extermann, P., Favier, J., Feng, C. C., Fiandrini, E., Finelli, F., Fisher, P. H., Flaminio, R., Fluegge, G., Fouque, N., Galaktionov, Y., Gervasi, M., Giusti, P., Grandi, D., Gu, W. Q., Hangarter, K., Hasan, A., Hermel, V., Hofer, H., Huang, M. A., Hungerford, W., Ionica, M., Ionica, R., Jongmanns, M., Karlamaa, K., Karpinski, W., Kenney, G., Kenny, J., Kim, W., Klimentov, A., Kossakowski, R., Koutsenko, V., Laborie, G., Laitinen, T., Lamanna, G., Laurenti, G., Lebedev, A., Lee, S. C., Levi, G., Levtchenko, P., Liu, C. L., Liu, H. T., Lolli, M., Lopes, I., Lu, G., Lu, Y. S., Lübelsmeyer, K., Luckey, D., Lustermann, W., Maña, C., Margotti, A., Massera, F., Mayet, F., McNeil, R. R., Meillon, B., Menichelli, M., Mezzanotte, F., Mezzenga, R., Mihul, A., Molinari, G., Mourao, A., Mujunen, A., Palmonari, F., Pancaldi, G., Papi, A., Park, I. H., Pauluzzi, M., Pauss, F., Perrin, E., Pesci, A., Pevsner, A., Pilastrini, R., Pimenta, M., Plyaskin, V., Pojidaev, V., Postema, H., Postolache, V., Prati, E., Produit, N., Rancoita, P. G., Rapin, D., Raupach, F., Recupero, S., Ren, D., Ren, Z., Ribordy, M., Richeux, J. P., Riihonen, E., Ritakari, J., Roeser, U., Roissin, C., Sagdeev, R., Santos, D., Sartorelli, G., Schultz von Dratzig, A., Schwering, G., Seo, E. S., Shoutko, V., Shoumilov, E., Siedling, R., Son, D., Song, T., Steuer, M., Sun, G. S., Suter, H., Tang, X. W., Ting, S. C. C., Ting, S. M., Tornikoski, M., Torromeo, G., Torsti, J., Trümper, J., Ulbricht, J., Urpo, S., Usoskin, I., Valtonen, E., Vandenhirtz, J., Velcea, F., Velikhov, E., Verlaat, B., Vetlitsky, I., Vezzu, F., Vialle, J. P., Viertel, G., Vité, D., Von Gunten, H., Waldmeier Wicki, S., Wallraff, W., Wang, B. C., Wang, J. Z., Wang, Y. H., Wiik, K., Williams, C., Wu, S. X., Xia, P. C., Yan, J. L., Yan, L. G., Yang, C. G., Yang, M., Ye, S. W., Yeh, P., Xu, Z. Z., Zhang, H. Y., Zhang, Z. P., Zhao, D. X., Zhu, G. Y., Zhu, W. Z., Zhuang, H. L. & Zichichi, A., Physics Letters B, 472, 215
5. Persistent 22-year Cycle in Sunspot Activity: Evidence for a Relic Solar Magnetic Field [1]
   Mursula, K., Usoskin, I. G. & Kovaltsov, G. A., The Solar Cycle and Terrestrial Climate, Solar and Space weather (Editors: Wilson, A.), ESA Special Publication, 463, p. 387
6. Regular and Random Components of Sunspot Activity during Active Sun and Great Minima: Model Simulation [0]
   Usoskin, I. G., Mursula, K. & Kovaltsov, G. A., The Solar Cycle and Terrestrial Climate, Solar and Space weather (Editors: Wilson, A.), ESA Special Publication, 463, p. 447
7. Cyclic behaviour of sunspot activity during the Maunder minimum [62]
   Usoskin, I. G., Mursula, K. & Kovaltsov, G. A., A&A, 354, L33

1999

1. Search for antihelium in cosmic rays. [129]
   Alcaraz, J., Alvisi, D., Alpat, B., Ambrosi, G., Anderhub, H., Ao, L., Arefiev, A., Azzarello, P., Babucci, E., Baldini, L., Basile, M., Barancourt, D., Barao, F., Barbier, G., Barreira, G., Battiston, R., Becker, R., Becker, U., Bellagamba, L., Bene, P., Berdugo, J., Berges, P., Bertucci, B., Biland, A., Bizzaglia, S., Blasko, S., Boella, G., Bourquin, M., Bruni, G., Buenerd, M., Burger, J. D., Burger, W. J., Cai, X. D., Cavalletti, R., Camps, C., Cannarsa, P., Capell, M., Casadei, D., Casaus, J., Catellini, G., Chang, Y. H., Chen, H. S., Chen, Z. G., Chernoplekov, N. A., Chiarini, A., Chiueh, T. H., Chuang, Y. L., Cindolo, F., Commichau, V., Contin, A., Cotta-Ramusino, A., Crespo, P., Cristinziani, M., da Cunha, J. P., Dai, T. S., Deus, J. D., Ding, L. K., Dinu, N., Djambazov, L., D'Antone, I., Dong, Z. R., Emonet, P., Eppling, F. J., Eronen, T., Esposito, G., Extermann, P., Favier, J., Feng, C. C., Fiandrini, E., Finelli, F., Fisher, P. H., Flaminio, R., Fluegge, G., Fouque, N., Galaktionov, Yu., Gervasi, M., Giusti, P., Gu, W. Q., Guzik, T. G., Hangarter, K., Hasan, A., Hermel, V., Hofer, H., Huang, M. A., Hungerford, W., Ionica, M., Ionica, R., Isbert, J., Jongmanns, M., Karpinski, W., Kenney, G., Kenny, J., Kim, W., Klimentov, A., Krieger, J., Kossakowski, R., Koutsenko, V., Laborie, G., Laitinen, T., Lamanna, G., Laurenti, G., Lebedev, A., Lee, S. C., Levi, G., Levtchenko, P., Li, T. P., Liu, H. T., Lolli, M., Lopes, I., Lu, G., Lu, Y. S., Lubelsmeyer, K., Luckey, D., Lustermann, W., Maehlum, G., Mana, C., Margotti, A., Massera, F., Mayet, F., McNeil, R. R., Meillon, B., Menichelli, M., Mezzanotte, F., Mezzenga, R., Mihul, A., Molinari, G., Mourao, A., Mujunen, A., Palmonari, F., Pancaldi, G., Papi, A., Park, I. H., Pauluzzi, M., Pauss, F., Perrin, E., Pesci, A., Pevsner, A., Pilastrini, R., Pimenta, M., Plyaskin, V., Pojidaev, V., Postema, H., Prati, E., Produit, N., Rancoita, P. G., Rapin, D., Raupach, F., Recupero, S., Ren, D., Ren, Z., Ribordy, M., Richeux, J. P., Riihonen, E., Ritakari, J., Roeser, U., Roissin, C., Sagdeev, R., Santos, D., Sartorelli, G., Schultz von Dratzig, A., Schwering, G., Shoutko, V., Shoumilov, E., Siedling, R., Son, D., Song, T., Steuer, M., Sun, G. S., Suter, H., Tang, X. W., Ting, S. C. C., Ting, S. M., Tenbusch, F., Torromeo, G., Torsti, J., Trumper, J., Ulbricht, J., Urpo, S., Usoskin, I., Valtonen, E., Vandenhirtz, J., Velikhov, E., Verlaat, B., Vetlitsky, I., Vezzu, F., Vialle, J. P., Viertel, G., Vite, D., von Gunten, H., Waldmeier Wicki, S., Wallraff, W., Wang, B. C., Wang, J. Z., Wang, Y. H., Wefel, J. P., Werner, E. A., Williams, C., Wu, S. X., Xia, P. C., Yan, J. L., Yan, L. G., Yang, C. G., Yang, M., Yeh, P., Zhang, H. Y., Zhao, D. X., Zhu, G. Y., Zhu, W. Z., Zhuang, H. L. & Zichichi, A., Physics Letters B, 461, 387
2. Secondary production antiproton flux: A comparison between interstellar models and expected flux at the Earth - presented by M. A. C. Potenza [1]
   Boella, G., Gervasi, M., Potenza, M. A. C., Rancoita, P. G. & Usoskin, I., Vulcano Workshop 1998: Frontier Objects in Astrophysics and Particle Physics (Editors: Giovannelli, F. & Mannocchi, G.), 65, p. 379
3. An Oracle© Database for the AMS experiment [0]
   Boschini, M., Gervasi, M., Grandi, D., Rancoita, P. G., Trombetta, L. & Usoskin, I. G., Nuclear Physics B Proceedings Supplements, 78, 727
4. Monte-Carlo approach to Galactic Cosmic Ray propagation in the Heliosphere [25]
   Gervasi, M., Rancoita, P. G., Usoskin, I. G. & Kovaltsov, G. A., Nuclear Physics B Proceedings Supplements, 78, 26
5. Time Evolution of Solar Activity and Cosmic Ray Intensity during the Maunder Minimum [0]
   Usoskin, I. G., 26th International Cosmic Ray Conference (ICRC26), Volume 7 (Editors: Kieda, D., Salamon, M. & Dingus, B.), International Cosmic Ray Conference, 7, p. 127
6. Connections between neutron monitor count rate and solar modulation strength [5]
   Usoskin, I. G., Gladysheva, O. G., Bobik, P., Kudela, K. & Kananen, H., Czechoslovak Journal of Physics, 49, 1743

1998

1. Effect of the Solar Modulation at Minimum Activity on Expected Ratio of Antiproton to Proton Flux [0]
   Boella, G., Gervasi, M., Potenza, M. A. C., Rancoita, P. G. & Usoskin, I., COSMO-97, First International Workshop on Particle Physics and the Early Universe (Editors: Roszkowski, Leszek), p. 273
2. Modulated antiproton fluxes for interstellar production models [20]
   Boella, G., Gervasi, M., Potenza, M. A. C., Rancoita, P. G. & Usoskin, I., Astroparticle Physics, 9, 261
3. Correlative study of solar activity and cosmic ray intensity [95]
   Usoskin, I. G., Kananen, H., Mursula, K., Tanskanen, P. & Kovaltsov, G. A., Journal of Geophysical Research, 103, 9567

1997

1. Phases of Charged Particles Acceleration during Powerful Solar Gamma-Flares Detected by the Gamma - 1 [0]
   Galper, A. M., Luchkov, B. I., Ozerov, Yu. V., Khodarovich, A. M., Rinchinov, S. B., Kovaltsov, G. A. & Usoskin, I. G., International Cosmic Ray Conference, International Cosmic Ray Conference, 1, p. 169
2. Direct Deduction of the Number of Neutrons Injected from the Sun on the Basis of Neutron Monitor Response [0]
   Kananen, H., Kovaltsov, G. A., Tanskanen, P. & Usoskin, I. G., International Cosmic Ray Conference, International Cosmic Ray Conference, 1, p. 49
3. Impact of Magnetic Environment on the Generation of High-Energy Neutrons at the Sun [5]
   Kocharov, L. G., Torsti, J., Tang, F., Zirin, H., Kovaltsov, G. A. & Usoskin, I. G., Solar Physics, 172, 271
4. Impact of Magnetic Environment on the Generation of High-Energy Neutrons and Gamma-Rays During Solar Flares [1]
   Kocharov, L. G., Kovaltsov, G., Torsti, J. & Usoskin, I., International Cosmic Ray Conference, International Cosmic Ray Conference, 1, p. 65
5. On the Claimed 5.5-year Periodicity in Solar Activity [20]
   Mursula, K., Usoskin, I. & Zieger, B., Solar Physics, 176, 201
6. Period of Unusual Cosmic Ray Modulation in Late 20th Cycle: Correlative Study of Cosmic Ray variations vs. Solar Activity [0]
   Usoskin, I. G., Kovaltsov, G. A., Kananen, H., Mursula, K. & Tanskanen, P., International Cosmic Ray Conference, International Cosmic Ray Conference, 2, p. 201
7. Phase Evolution of Solar Activity and Cosmic-Ray Variation Cycles [9]
   Usoskin, I. G., Kovaltsov, G. A., Kananen, H., Mursula, K. & Tanskanen, P. J., Solar Physics, 170, 447
8. Period of Unusual Modulation of Cosmic Ray Intensity: The Declining Phase of Cycle 20 [0]
   Usoskin, I. G., Kananen, H., Mursula, K., Tanskanen, P. & Kovaltsov, G. A., Correlated Phenomena at the Sun, in the Heliosphere and in Geospace (Editors: Wilson, A.), ESA Special Publication, 415, p. 491
9. The World Neutron Monitor Network as a tool for the study of solar neutrons [21]
   Usoskin, I. G., Kovaltsov, G. A., Kananen, H. & Tanskanen, P., Annales Geophysicae, 15, 375

1996

1. Temporal and spectral characteristics of solar gamma flares observed in the Gamma-1 experiment. [0]
   Galper, A. M., Zverev, V. G., Luchkov, B. I., Ozerov, Yu. V., Khodarovitch, A. M., Kovaltsov, G. A. & Usoskin, I. G., Journal of Moscow Physical Society, 6, 399
2. A Joint Analysis of High-Energy Neutrons and Neutron-Decay Protons from a Flare [20]
   Kocharov, L. G., Torsti, J., Vainio, R., Kovaltsov, G. A. & Usoskin, I. G., Solar Physics, 169, 181
3. The 1990 May 24 solar flare and cosmic ray event [8]
   Kocharov, Leon, Kovaltsov, Gennadi, Torsti, Jarmo, Usoskin, Ilya, Zirin, Harold, Anttila, Antti & Vainio, Rami, High energy solar Physics (Editors: Ramaty, Reuven, Mandzhavidze, Natalie & Hua, Xin-Min), American Institute of Physics Conference Series, 374, p. 246

1995

1. The June 3, 1982 Solar Flare as a Test for Neutron Monitor Sensitivity for Solar Neutrons [0]
   Kananen, H., Kocharov, L. G., Kovaltsov, G. A., Tanskanen, P. & Usoskin, I. G., International Cosmic Ray Conference, International Cosmic Ray Conference, 4, p. 147
2. The 1991 March 22 Flare: Possible Anisotropy of High-Energy Neutral Emission [10]
   Kocharov, L. G., Lee, Jeongwoo W., Wang, H., Zirin, H., Kovaltsov, G. A. & Usoskin, I. G., Solar Physics, 158, 95
3. Correlative Investigations of the 1990 May 24 Solar Flare [0]
   Kocharov, L. G., Kovaltsov, G. A., Torsti, J., Usoskin, I. G. & Zirin, H., International Cosmic Ray Conference, International Cosmic Ray Conference, 4, p. 159
4. Neutron Monitor Data on the 15 June 1991 Flare: Neutrons as a Test for Proton Acceleration Scenario [5]
   Kovaltsov, G. A., Usoskin, I. G., Kocharov, L. G., Kananen, H. & Tanskanen, P. J., Solar Physics, 158, 395
5. Two Injections of High Energy Neutrons during the May 24, 1990 Solar Flare [2]
   Kovaltsov, G. A., Kocharov, L. G., Usoskin, I. G., Kananen, H. & Taskanen, P., International Cosmic Ray Conference, International Cosmic Ray Conference, 4, p. 155
6. High Energy Neutrons from the June 15, 1991 Solar Flare as Detected by the Neutron Monitor [0]
   Usoskin, I. G., Kovaltsov, G. A., Kocharov, L. G., Kananen, H. & Tanskanen, P., International Cosmic Ray Conference, International Cosmic Ray Conference, 4, p. 151

1994

1. High-energy gamma-ray signature of proton acceleration during 1991 June 15 solar flare [2]
   Kocharov, G. E., Chuikin, E. I., Kovaltsov, G. A., Usoskin, I. G. & Kocharov, L. G., High-Energy Solar Phenomena - a New Era of Spacecraft Measurements (Editors: Ryan, J. & Vestrand, W. T.), American Institute of Physics Conference Series, 294, p. 45
2. Neutron and electromagnetic emissions during the 1990 May 24 solar flare [49]
   Kocharov, L. G., Lee, Jeongwoo W., Zirin, H., Kovaltsov, G. A., Usoskin, I. G., Pyle, K. R., Shea, M. A. & Smart, D. F., Solar Physics, 155, 149
3. Electromagnetic and corpuscular emission from the solar flare of 1991 June 15: Continuous acceleraton of relativistic particles [40]
   Kocharov, L. G., Kovaltsov, G. A., Kocharov, G. E., Chuikin, E. I., Usoskin, I. G., Shea, M. A., Smart, D. F., Melnikov, V. F., Podstrigach, T. S., Armstrong, T. P. & Zirin, H., Solar Physics, 150, 267
4. Generation of neutrons during the solar flare of May 24, 1990 [3]
   Koval'Tsov, G. A., Kocharov, G. E., Kocharov, L. G. & Usoskin, I. G., Astronomy Letters, 20, 658

1993

1. Detection of solar neutrinos by the worldwide network of neutron monitors [0]
   Efimov, Yu. E., Koval'Tsov, G. A., Kocharov, G. E., Kocharov, L. G. & Usoskin, I. G., Rossijskaya Akademiya Nauk Izvestiya Seriya Fizicheskaya, 57, 142
2. High Energy Gamma Rays from 1991 June 15 Solar Flare as Evidence of Proton Acceleration up to 10 GeV [3]
   Kocharov, G. E., Chuikin, E. I., Kocharov, L. G., Kovaltsov, G. A., Melnikov, V. F., Podstrigach, T. S. & Usoskin, I. G., 23rd International Cosmic Ray Conference (ICRC23), Volume 3 (Editors: Leahy, D. A., Hicks, R. B. & Venkatesan, D.), International Cosmic Ray Conference, 3, p. 123
3. Gamma-radiation from the solar flare of 15 June 1991 as evidence of long-term acceleration of protons up to 10 GeV [0]
   Koval'Tsov, G. A., Kocharov, G. E., Kocharov, L. G., Mel'Nikov, V. F., Podstrigach, T. S., Usoskin, I. G. & Chujkin, E. I., Rossijskaya Akademiya Nauk Izvestiya Seriya Fizicheskaya, 57, 138

1991

1. Solar flare neutrinos. [7]
   Kocharov, G. E., Koval'Tsov, G. A. & Usoskin, I. G., Nuovo Cimento C Geophysics Space Physics C, 14, 417
2. Solar Flare Neutrinos [1]
   Kocharov, G. E., Kovaltsov, G. A. & Usoskin, I. G., International Cosmic Ray Conference, International Cosmic Ray Conference, 3, p. 752

1990

1. On the Dimension of Solar Attractor [43]
   Ostriakov, V. M. & Usoskin, I. G., Solar Physics, 127, 405

1988

1. On the dimension of the solar attractor. [0]
   Ostryakov, V. M. & Usoskin, I. G., Byulletin Solnechnye Dannye Akademie Nauk SSSR, 1988, 91