TY - JOUR AU - Sharma, A. TI - Correction JO - Canadian mathematical bulletin PY - 1970 SP - 297 EP - 297 VL - 13 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.1017/S0008439500031842/ DO - 10.1017/S0008439500031842 ID - 10_1017_S0008439500031842 ER -