TY  - JOUR
AU  - M. Rakhimov
TI  - The property of being an unconditional basis on a closed interval of systems of eigen- and associated functions of a quadratic pencil of nonselfadjoint differential operators
JO  - Differencialʹnye uravneniâ
PY  - 1986
SP  - 94
EP  - 103
VL  - 22
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1986_22_1_a11/
LA  - ru
ID  - DE_1986_22_1_a11
ER  -