TY  - JOUR
AU  - D. G. Orlovskii
TI  - An inverse problem for an equation of hyperbolic type in a Hilbert space
JO  - Differencialʹnye uravneniâ
PY  - 1991
SP  - 1771
EP  - 1778
VL  - 27
IS  - 10
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1991_27_10_a14/
LA  - ru
ID  - DE_1991_27_10_a14
ER  -