TY - JOUR AU - Conrad, Paul TI - The Additive Group of an f-ring JO - Canadian journal of mathematics PY - 1974 SP - 1157 EP - 1168 VL - 26 IS - 5 UR - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1974-108-3/ DO - 10.4153/CJM-1974-108-3 ID - 10_4153_CJM_1974_108_3 ER -