%0 Journal Article
%A L. S. Lavrinovich
%T A certain class of differential equations with a limit cycle
%J Differencialʹnye uravneniâ
%D 1974
%P 2077-2078
%V 10
%N 11
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1974_10_11_a24/
%G ru
%F DE_1974_10_11_a24