%0 Journal Article
%A V. F. Filiptsov
%T Algebraic limit cycles
%J Differencialʹnye uravneniâ
%D 1973
%P 1281-1288
%V 9
%N 7
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1973_9_7_a12/
%G ru
%F DE_1973_9_7_a12