%0 Journal Article
%A L. I. Zhilevich
%T On periodic solutions of the Li\'enard equation
%J Differencialʹnye uravneniâ
%D 1987
%P 608-611
%V 23
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1987_23_4_a5/
%G ru
%F DE_1987_23_4_a5