%0 Journal Article
%A N. N. Butenina
%T Bifurcations of the separatrices and limit cycles of a two-dimensional dynamical system under a rotation of the field
%J Differencialʹnye uravneniâ
%D 1973
%P 1520-1522
%V 9
%N 8
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1973_9_8_a15/
%G ru
%F DE_1973_9_8_a15