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Heber, B.; Keppler, E.; Marsden, R.; Tranquille, C.; Blake, B. J.; Fränz, M.: The Evolution of the anomalous cosmic ray oxygen spectra during U}lysses slow descent in 1995 to 1998: {COSPIN/LET} and {EPAC observations. Space Science Reviews 97, pp. 363 - 366 (2001)
Heber, B.; Keppler, E.; Marsden, R.-G.; Tranquille, C.; Blake, B.; Fränz, M.: The evolution of the anomalous cosmic ray oxygen spectra from 1995 to 1998: Ulysses observations. Space Science Reviews 97, pp. 363 - 366 (2001)
Fränz, M.; Keppler, E.; Lauth, U.; Reuss, M. K.; Mason, G. M.; Mazur, J. E.: Energetic particle abundances at CIR shocks. Geophysical Research Letters 26 (1), pp. 17 - 20 (1999)
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Quenby, J. J.; Witcombe, A.; Drolias, B.; Fränz, M.; Keppler, E.: Coronal diffusion and high solar latitude recurrent energetic particle increases. Astronomy and Astrophysics 316, pp. 506 - 510 (1996)
Reuss, M. K.; Fränz, M.; Keppler, E.: Recurrent variations of anomalous oxygen in association with a corotating interaction region. Annales Geophysicae 14 (6), pp. 585 - 588 (1996)
Blake, B.; Fränz, M.; Keppler, E.; Krupp, N.; Reuss, M. K.; Quenby, J. J.: On the minimum fluxes of low-energy ions (0.5 MeV/nuc-8 MeV/nuc) at high heliospheric latitudes. Advances in Space Research 15, pp. (7)81 - (7)84 (1995)
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First Light! The spectro-polarimeter of the world's largest solar telescope in Hawaii looks at the Sun for the first time. The instrument was developed in Germany.
Dr. Theodosios Chatzistergos receives award by the European Space Weather and Space Climate Association for his research findings on the historical activity of the Sun.
The Zdenĕk Švetska Senior Prize of the Solar Physics Division of the European Physical Society (EPS) recognizes Solanki’s pioneering contributions to solar research.