%0 Journal Article
%A V. V. Filippov
%T A Remark on the Existence of a Periodic Solution
%J Differencialʹnye uravneniâ
%D 2003
%P 425-427
%V 39
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_2003_39_3_a20/
%G ru
%F DE_2003_39_3_a20