TY  - JOUR
AU  - G. G. Islamov
TI  - Estimates for a minimal rank of finite-dimensional perturbations of Green operators
JO  - Differencialʹnye uravneniâ
PY  - 1989
SP  - 1496
EP  - 1503
VL  - 25
IS  - 9
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1989_25_9_a3/
LA  - ru
ID  - DE_1989_25_9_a3
ER  -