TY  - JOUR
AU  - S. S. Kharibegashvili
TI  - Solvability of a characteristic problem for second-order degenerate hyperbolic systems
JO  - Differencialʹnye uravneniâ
PY  - 1989
SP  - 154
EP  - 162
VL  - 25
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1989_25_1_a17/
LA  - ru
ID  - DE_1989_25_1_a17
ER  -