29 Feb 2000
Ion upflow and downflow at the topside ionosphere observed by the EISCAT VHF radar
M. Endo, R. Fujii, Y. Ogawa, S. C. Buchert, S. Nozawa, S. Watanabe, and N. Yoshida
Ann. Geophys., 18, 170–181, https://doi.org/10.1007/s00585-000-0170-3,https://doi.org/10.1007/s00585-000-0170-3, 2000