TY  - JOUR
AU  - Joseph Valentine
TI  - On criteria of Blumenthal for inner-product spaces
JO  - Fundamenta Mathematicae
PY  - 1971
SP  - 265
EP  - 269
VL  - 72
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/fm-72-3-265-269/
DO  - 10.4064/fm-72-3-265-269
LA  - en
ID  - 10_4064_fm_72_3_265_269
ER  -