TY  - JOUR
AU  - M. M. Zainulabidov
TI  - A certain boundary value problem for a model equation of mixed type with two perpendicular lines of degeneracy
JO  - Doklady Akademii Nauk
PY  - 1969
SP  - 986
EP  - 989
VL  - 188
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1969_188_5_a5/
LA  - ru
ID  - DAN_1969_188_5_a5
ER  -