TY  - JOUR
AU  - A. G. Rutkas
TI  - On the theory of characteristic functions of linear operators
JO  - Doklady Akademii Nauk
PY  - 1976
SP  - 546
EP  - 549
VL  - 229
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1976_229_3_a5/
LA  - ru
ID  - DAN_1976_229_3_a5
ER  -