TY  - JOUR
TI  - Solutions
JO  - Canadian mathematical bulletin
PY  - 1961
SP  - 72
EP  - 78
VL  - 4
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.1017/S0008439500025625/
DO  - 10.1017/S0008439500025625
ID  - 10_1017_S0008439500025625
ER  -