TY  - JOUR
AU  - V. A. Sadovnichy
AU  - V. V. Dubrovskii
TI  - Some properties of operators with a discrete spectrum
JO  - Differencialʹnye uravneniâ
PY  - 1979
SP  - 1206
EP  - 1211
VL  - 15
IS  - 7
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1979_15_7_a4/
LA  - ru
ID  - DE_1979_15_7_a4
ER  -