TY  - JOUR
AU  - Yu. V. Egorov
TI  - Hyperbolic equations with discontinuous coefficients
JO  - Doklady Akademii Nauk
PY  - 1960
SP  - 514
EP  - 517
VL  - 134
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1960_134_3_a3/
LA  - ru
ID  - DAN_1960_134_3_a3
ER  -