%0 Journal Article %A O. A. Filippova %T Existence of a zone of ``non-gravity'' motion of a satellite on a slowly evolving orbit %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 2004 %P 65-67 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMUMM_2004_3_a15/ %G ru %F VMUMM_2004_3_a15