TY  - JOUR
AU  - N. G. Sorokina
TI  - Multidimensional generalizations of C.~Morawetz' theorem on the weak solvability of a system of mixed type differential equations
JO  - Differencialʹnye uravneniâ
PY  - 1977
SP  - 155
EP  - 158
VL  - 13
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1977_13_1_a20/
LA  - ru
ID  - DE_1977_13_1_a20
ER  -