TY - JOUR AU - Bell, Howard E. TI - Duo Rings: Some Applications to Commutativity Theorems JO - Canadian mathematical bulletin PY - 1968 SP - 375 EP - 380 VL - 11 IS - 3 UR - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1968-042-0/ DO - 10.4153/CMB-1968-042-0 ID - 10_4153_CMB_1968_042_0 ER -