%0 Journal Article %A A. A. Martynyuk %T On the polystability of motion with respect to some of the %J Doklady Akademii Nauk %D 1992 %P 39-41 %V 324 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1992_324_1_a6/ %G ru %F DAN_1992_324_1_a6