%0 Journal Article
%A A. M. Samoilenko
%A I. V. Polesya
%T The existence of separatrix surfaces for systems in standard form
%J Differencialʹnye uravneniâ
%D 1975
%P 1827-1831
%V 11
%N 10
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1975_11_10_a12/
%G ru
%F DE_1975_11_10_a12