%0 Journal Article
%A L. A. Cherkas
%T Conditions for a center for the equation $P_3(x)yy'=\sum_{i=0}^2P_i(x)y^i$
%J Differencialʹnye uravneniâ
%D 1974
%P 367-368
%V 10
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1974_10_2_a26/
%G ru
%F DE_1974_10_2_a26