TY  - JOUR
AU  - Kh. G. Umarov
TI  - Solution by Riemann's method of the Goursat problem for certain hyperbolic equations with variable operator coefficients
JO  - Izvestiâ vysših učebnyh zavedenij. Matematika
PY  - 1982
SP  - 76
EP  - 79
IS  - 12
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IVM_1982_12_a15/
LA  - ru
ID  - IVM_1982_12_a15
ER  -