TY  - JOUR
AU  - V. G. Romanov
TI  - Solvability of inverse problems for hyperbolic equations in a
JO  - Doklady Akademii Nauk
PY  - 1989
SP  - 807
EP  - 811
VL  - 304
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1989_304_4_a8/
LA  - ru
ID  - DAN_1989_304_4_a8
ER  -