%0 Journal Article
%A O. A. Ivanov
%T Existence of periodic solutions of quasihomogeneous systems
%J Differencialʹnye uravneniâ
%D 1982
%P 898-901
%V 18
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1982_18_5_a25/
%G ru
%F DE_1982_18_5_a25