%0 Journal Article %A V. K. Mel'nikov %T On the behavior of the trajectories of a class of dynamical systems %J Sbornik. Mathematics %D 1967 %P 477-500 %V 2 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1967_2_4_a4/ %G en %F SM_1967_2_4_a4