TY  - JOUR
AU  - V. A. Yurko
TI  - An inverse problem for selfadjoint differential operators on the
JO  - Doklady Akademii Nauk
PY  - 1993
SP  - 449
EP  - 451
VL  - 333
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1993_333_4_a10/
LA  - ru
ID  - DAN_1993_333_4_a10
ER  -