TY  - JOUR
AU  - S. A. Vavilov
TI  - On the solvability of a class of operator equations
JO  - Doklady Akademii Nauk
PY  - 1991
SP  - 22
EP  - 26
VL  - 316
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1991_316_1_a3/
LA  - ru
ID  - DAN_1991_316_1_a3
ER  -