%0 Journal Article
%A V. K. Romanko
%T Boundary value problems for degenerate systems of equations
%J Differencialʹnye uravneniâ
%D 1991
%P 2138-2147
%V 27
%N 12
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1991_27_12_a15/
%G ru
%F DE_1991_27_12_a15