TY  - JOUR
AU  - V. Ala
AU  - Kh. R. Mamedov
TI  - On basis property of root functions for a class of the second order differential operators
JO  - Vestnik Ûžno-Uralʹskogo gosudarstvennogo universiteta. Seriâ, Matematika, mehanika, fizika
PY  - 2020
SP  - 15
EP  - 21
VL  - 12
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/VYURM_2020_12_3_a1/
LA  - en
ID  - VYURM_2020_12_3_a1
ER  -