%0 Journal Article %A M. B. Kudaev %T A study of the behaviour of the trajectories of systems of differential equations by means of Lyapunov functions %J Doklady Akademii Nauk %D 1962 %P 1285-1287 %V 147 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1962_147_6_a4/ %G ru %F DAN_1962_147_6_a4