%0 Journal Article
%A L. A. Cherkas
%T Structure of the sequence function in the neighborhood of a separatrix cycle during perturbation of an analytic autonomous system on the plane
%J Differencialʹnye uravneniâ
%D 1981
%P 469-478
%V 17
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1981_17_3_a4/
%G ru
%F DE_1981_17_3_a4