TY - JOUR AU - Herstein, I. N. TI - A Note on Derivations JO - Canadian mathematical bulletin PY - 1978 SP - 369 EP - 370 VL - 21 IS - 3 UR - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1978-065-x/ DO - 10.4153/CMB-1978-065-x ID - 10_4153_CMB_1978_065_x ER -