%0 Journal Article
%A Yu. K. Metlyaev
%T A qualitative investigation of certain differential equations
%J Differencialʹnye uravneniâ
%D 1972
%P 543-544
%V 8
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1972_8_3_a19/
%G ru
%F DE_1972_8_3_a19