%0 Journal Article
%A N. G. Sorokina
%T Multidimensional generalizations of C.~Morawetz' theorem on the weak solvability of a system of mixed type differential equations
%J Differencialʹnye uravneniâ
%D 1977
%P 155-158
%V 13
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1977_13_1_a20/
%G ru
%F DE_1977_13_1_a20