TY  - JOUR
AU  - L. A. Sakhnovich
TI  - Nonunitary operators with absolutely continuous spectrum on the unit cycle
JO  - Doklady Akademii Nauk
PY  - 1968
SP  - 558
EP  - 561
VL  - 181
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1968_181_3_a12/
LA  - ru
ID  - DAN_1968_181_3_a12
ER  -