TY - JOUR AU - Courter, Richard TI - Finite Direct Sums of Complete Matrix Rings over Perfect Completely Primary Rings JO - Canadian journal of mathematics PY - 1969 SP - 430 EP - 446 VL - 21 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1969-047-0/ DO - 10.4153/CJM-1969-047-0 ID - 10_4153_CJM_1969_047_0 ER -