TY  - JOUR
AU  - V. I. Filippenko
TI  - On one class of non-selfadjoint differential operators with a discrete spectrum
JO  - Differencialʹnye uravneniâ
PY  - 1978
SP  - 383
EP  - 384
VL  - 14
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1978_14_2_a26/
LA  - ru
ID  - DE_1978_14_2_a26
ER  -