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Items where Author is "Helali, Y.E."
Group by: Item Type | No Grouping Number of items: 1. Sehnal, L. and Vykutilová, M. and Illés, E. and Horváth, A. and Helali, Y.E. and Tawadrous, M.Y. (1988) The semi-annual thermospheric density variation between 200 - 560 km. Astronomical Institutes of Czechoslovakia, Bulletin, 39 (4). pp. 209-213. ISSN 0004-6248 |
