%0 Journal Article %A V. A. Belov %T Asymptotic trajectories of non-autonomous dynamical systems %J Differencialʹnye uravneniâ %D 1967 %P 226-231 %V 3 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1967_3_2_a5/ %G ru %F DE_1967_3_2_a5