TY  - JOUR
AU  - N. I. Nagnibida
TI  - Integral perturbations of the operator of multiplication by an
JO  - Doklady Akademii Nauk
PY  - 1987
SP  - 542
EP  - 545
VL  - 292
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1987_292_3_a6/
LA  - ru
ID  - DAN_1987_292_3_a6
ER  -