TY  - JOUR
TI  - Openings in Mathematics
JO  - Canadian mathematical bulletin
PY  - 1960
SP  - 112
EP  - 112
VL  - 3
IS  - 2
UR  - http://geodesic.mathdoc.fr/articles/10.1017/S0008439500025443/
DO  - 10.1017/S0008439500025443
ID  - 10_1017_S0008439500025443
ER  -