TY  - JOUR
AU  - G. M. Gubreev
TI  - Spectral analysis of biorthogonal expansions of functions, and exponential series
JO  - Izvestiya. Mathematics 
PY  - 1990
SP  - 573
EP  - 605
VL  - 35
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM2_1990_35_3_a3/
LA  - en
ID  - IM2_1990_35_3_a3
ER  -