%0 Journal Article
%A V. A. Pliss
%T The position of the separatrices of saddle-point periodic motions of systems of second order differential equations
%J Differencialʹnye uravneniâ
%D 1971
%P 1199-1225
%V 7
%N 7
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1971_7_7_a5/
%G ru
%F DE_1971_7_7_a5