TY  - JOUR
AU  - G. Gussi
AU  - V. Poénaru
AU  - C. Foias
TI  - Direct method in the Cauchy problem for a quasi-linear hyperbolic equation involving two independent variables
JO  - Doklady Akademii Nauk
PY  - 1957
SP  - 381
EP  - 382
VL  - 112
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1957_112_3_a2/
LA  - ru
ID  - DAN_1957_112_3_a2
ER  -