TY - JOUR TI - Ontario Mathematical Meetings - Winter, 1969 JO - Canadian mathematical bulletin PY - 1969 SP - 116 EP - 127 VL - 12 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.1017/S0008439500030228/ DO - 10.1017/S0008439500030228 ID - 10_1017_S0008439500030228 ER -