%0 Journal Article
%A Yu. V. Malyshev
%A V. P. Zakharov
%T Annular domains that contain limit cycles
%J Differencialʹnye uravneniâ
%D 1984
%P 408-413
%V 20
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1984_20_3_a5/
%G ru
%F DE_1984_20_3_a5