TY  - JOUR
AU  - G. D. Karatoprakliev
TI  - A certain boundary value problem for equations of mixed type in multidimensional regions
JO  - Doklady Akademii Nauk
PY  - 1969
SP  - 1223
EP  - 1226
VL  - 188
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1969_188_6_a5/
LA  - ru
ID  - DAN_1969_188_6_a5
ER  -