%0 Journal Article
%A Yu. N. Bibikov
%T The existence of conditionally periodic solutions of systems of differential equations
%J Differencialʹnye uravneniâ
%D 1971
%P 1347-1356
%V 7
%N 8
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1971_7_8_a0/
%G ru
%F DE_1971_7_8_a0