TY  - JOUR
AU  - F. E. Lomovtsev
AU  - N. J. Yurchuk
TI  - The Cauchy problem for second order hyperbolic operator differential equations
JO  - Differencialʹnye uravneniâ
PY  - 1976
SP  - 2242
EP  - 2250
VL  - 12
IS  - 12
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1976_12_12_a13/
LA  - ru
ID  - DE_1976_12_12_a13
ER  -