TY  - JOUR
TI  - Openings in Mathematics
JO  - Canadian mathematical bulletin
PY  - 1967
SP  - 171
EP  - 172
VL  - 10
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.1017/S0008439500027958/
DO  - 10.1017/S0008439500027958
ID  - 10_1017_S0008439500027958
ER  -