%0 Journal Article
%A Yu. L. Bondar
%A A. P. Sadovskii
%T Solution of the center-focus problem for a cubic system reducible to a lienard system
%J Differencialʹnye uravneniâ
%D 2006
%P 11-22
%V 42
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_2006_42_1_a1/
%G ru
%F DE_2006_42_1_a1