TY  - JOUR
AU  - V. P. Kurdyumov
TI  - On Riescz bases of eigenfunction of $2$-nd order differential operator with involution and integral boundary conditions
JO  - Izvestiya of Saratov University. Mathematics. Mechanics. Informatics
PY  - 2015
SP  - 392
EP  - 405
VL  - 15
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ISU_2015_15_4_a3/
LA  - ru
ID  - ISU_2015_15_4_a3
ER  -