%0 Journal Article
%A S. G. Kondratenya
%A E. G. Prolisko
%A T. I. Shilo
%T On the existence of polar solutions to first-order differential equations
%J Differencialʹnye uravneniâ
%D 1988
%P 1824-1826
%V 24
%N 10
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1988_24_10_a23/
%G ru
%F DE_1988_24_10_a23