%0 Journal Article
%A N. Yu. Kapustin
%T On the theory of boundary value problems for systems of equations of mixed type
%J Differencialʹnye uravneniâ
%D 1982
%P 1207-1213
%V 18
%N 7
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1982_18_7_a15/
%G ru
%F DE_1982_18_7_a15