TY  - JOUR
AU  - L. Stupyalis
TI  - Boundary value problems for elliptic-hyperbolic equations
JO  - Informatics and Automation
PY  - 1973
SP  - 211
EP  - 229
VL  - 125
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TRSPY_1973_125_a13/
LA  - ru
ID  - TRSPY_1973_125_a13
ER  -