TY - JOUR AU - Bell, H. E. AU - III, W. S. Martindale TI - Semiderivations and Commutativity in Prime Rings JO - Canadian mathematical bulletin PY - 1988 SP - 500 EP - 508 VL - 31 IS - 4 UR - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1988-072-9/ DO - 10.4153/CMB-1988-072-9 ID - 10_4153_CMB_1988_072_9 ER -