%0 Journal Article
%A Ya. A. Roitberg
%A Z. G. Sheftel
%T Boundary value problems for general elliptic systems with strong degeneration
%J Differencialʹnye uravneniâ
%D 1987
%P 292-300
%V 23
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1987_23_2_a12/
%G ru
%F DE_1987_23_2_a12