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@article{PDA_1980_10_a0, author = {Ladislav Sehnal}, title = {The {Earth} {Upper} {Atmosphere} and the {Motion} of the {Artificial} {Satellites}}, journal = {Publications of the Department of Astronomy}, pages = {5 }, publisher = {mathdoc}, volume = {10}, year = {1980}, language = {en}, url = {http://geodesic.mathdoc.fr/item/PDA_1980_10_a0/} }
Ladislav Sehnal. The Earth Upper Atmosphere and the Motion of the Artificial Satellites. Publications of the Department of Astronomy, Tome 10 (1980), p. 5 . http://geodesic.mathdoc.fr/item/PDA_1980_10_a0/