TY  - JOUR
AU  - Halperin, Israel
TI  - On the Gram Matrix
JO  - Canadian mathematical bulletin
PY  - 1962
SP  - 265
EP  - 280
VL  - 5
IS  - 3
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1962-027-1/
DO  - 10.4153/CMB-1962-027-1
ID  - 10_4153_CMB_1962_027_1
ER  -