TY  - JOUR
AU  - N. F. Valeev
TI  - On localization of the spectrum of non-self-adjoint differential operators
JO  - Fundamentalʹnaâ i prikladnaâ matematika
PY  - 2006
SP  - 11
EP  - 19
VL  - 12
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/FPM_2006_12_5_a1/
LA  - ru
ID  - FPM_2006_12_5_a1
ER  -