%0 Journal Article
%A V. P. Glushko
%T Degenerate linear differential equations. IV
%J Differencialʹnye uravneniâ
%D 1969
%P 599-611
%V 5
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1969_5_4_a0/
%G ru
%F DE_1969_5_4_a0