TY - JOUR AU - Williamson, Alan TI - On the Conjugacy Classes in an Integral Group Ring JO - Canadian mathematical bulletin PY - 1978 SP - 491 EP - 496 VL - 21 IS - 4 UR - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1978-083-8/ DO - 10.4153/CMB-1978-083-8 ID - 10_4153_CMB_1978_083_8 ER -