%0 Journal Article
%A S. I. Dovnar
%A L. A. Cherkas
%T Curves of Separatrix Cycles of a Quadratic System. The Case of Three Antisaddles and One Saddle
%J Differencialʹnye uravneniâ
%D 2002
%P 313-318
%V 38
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_2002_38_3_a3/
%G ru
%F DE_2002_38_3_a3