TY  - JOUR
AU  - T. B. Kasumov
TI  - Fractional powers of quasidifferential operators and theorems on the property of being a basis
JO  - Differencialʹnye uravneniâ
PY  - 1989
SP  - 729
EP  - 731
VL  - 25
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1989_25_4_a22/
LA  - ru
ID  - DE_1989_25_4_a22
ER  -