TY  - JOUR
AU  - Alsina, C.
AU  - Guijarro, P.
AU  - Tomás, M. S.
TI  - Characterizations of inner product structures involving the radius of the inscribed or circumscribed circumference
JO  - Archivum mathematicum
PY  - 1996
SP  - 233
EP  - 239
VL  - 32
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ARM_1996__32_3_a6/
LA  - en
ID  - ARM_1996__32_3_a6
ER  -