TY - JOUR TI - Solutions JO - Canadian mathematical bulletin PY - 1964 SP - 138 EP - 146 VL - 7 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.1017/S0008439500026801/ DO - 10.1017/S0008439500026801 ID - 10_1017_S0008439500026801 ER -