%0 Journal Article
%A A. V. Skitovich
%T The problem of center in the case of a complex stationary point that is separable into simple saddle points
%J Differencialʹnye uravneniâ
%D 1978
%P 1814-1823
%V 14
%N 10
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1978_14_10_a10/
%G ru
%F DE_1978_14_10_a10