%0 Journal Article
%A V. P. Pisarenok
%T Singularities of a system of differential equations
%J Differencialʹnye uravneniâ
%D 1981
%P 1630-1634
%V 17
%N 9
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1981_17_9_a10/
%G ru
%F DE_1981_17_9_a10