%0 Journal Article
%A S. G. Kondratenya
%A V. G. Linevich
%T On the question of classes of first-order differential equations with stationary critical singular points
%J Differencialʹnye uravneniâ
%D 1978
%P 2276-2278
%V 14
%N 12
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1978_14_12_a23/
%G ru
%F DE_1978_14_12_a23