TY  - JOUR
AU  - R. Sakamoto
TI  - Mixed problems for hyperbolic equations. II.~Existence theorems with zero initial datas and energy inequalities with initial datas
JO  - Matematika
PY  - 1972
SP  - 81
EP  - 99
VL  - 16
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MAT_1972_16_1_a3/
LA  - ru
ID  - MAT_1972_16_1_a3
ER  -