TY  - JOUR
AU  - M. A. Gol'dman
AU  - S. N. Krachkovskii
TI  - Some remarks on perturbations of closed linear operators with closed range
JO  - Doklady Akademii Nauk
PY  - 1978
SP  - 25
EP  - 27
VL  - 242
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1978_242_1_a4/
LA  - ru
ID  - DAN_1978_242_1_a4
ER  -