TY  - JOUR
AU  - N. V. Kuznetsov
TI  - A generalization of a theorem stated by V.\,A.~Ambartsumyan
JO  - Doklady Akademii Nauk
PY  - 1962
SP  - 1259
EP  - 1262
VL  - 146
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1962_146_6_a3/
LA  - ru
ID  - DAN_1962_146_6_a3
ER  -