TY - JOUR TI - Problems for Solution JO - Canadian mathematical bulletin PY - 1962 SP - 70 EP - 70 VL - 5 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.1017/S0008439500025935/ DO - 10.1017/S0008439500025935 ID - 10_1017_S0008439500025935 ER -