%0 Journal Article
%A P. S. Belevets
%T A certain class of dynamical systems with two closed algebraic trajectories
%J Differencialʹnye uravneniâ
%D 1968
%P 1150-1153
%V 4
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1968_4_6_a20/
%G ru
%F DE_1968_4_6_a20