Nielsen, E.; Haldoupis, C. I.; Fejer, B. G.; Ierkic, H. M.: Dependence of auroral power spectral variations upon electron drift velocity in the eastward electrojet. Journal Geophysical Research 89, pp. 253 - 260 (1984)
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.