TY  - JOUR
AU  - Bynum, W. L.
TI  - Weak Parallelogram Laws for Banach Spaces
JO  - Canadian mathematical bulletin
PY  - 1976
SP  - 269
EP  - 275
VL  - 19
IS  - 3
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1976-042-4/
DO  - 10.4153/CMB-1976-042-4
ID  - 10_4153_CMB_1976_042_4
ER  -