TY  - JOUR
AU  - S. Kwapień
TI  - Isomorphic characterizations of inner product spaces by orthogonal series with vector valued coefficients
JO  - Studia Mathematica
PY  - 1972
SP  - 583
EP  - 595
VL  - 44
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/sm-44-6-583-595/
DO  - 10.4064/sm-44-6-583-595
LA  - en
ID  - 10_4064_sm_44_6_583_595
ER  -