TY  - JOUR
AU  - V. N. Polyakov
TI  - A problem concering characteristic functions of linear operators
JO  - Matematičeskie zametki
PY  - 1971
SP  - 171
EP  - 180
VL  - 9
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1971_9_2_a7/
LA  - ru
ID  - MZM_1971_9_2_a7
ER  -