TY  - JOUR
AU  - W. Gerisch
TI  - A remark on the work of N.\,K.~Bari on biorthogonal systems and bases in Hilbert space
JO  - Doklady Akademii Nauk
PY  - 1971
SP  - 1018
EP  - 1019
VL  - 200
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1971_200_5_a1/
LA  - ru
ID  - DAN_1971_200_5_a1
ER  -