%0 Journal Article %A B. A. Shcherbakov %T Recurrent solutions of differential equations and the general theory of dynamical systems %J Differencialʹnye uravneniâ %D 1967 %P 1450-1460 %V 3 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1967_3_9_a3/ %G ru %F DE_1967_3_9_a3