TY - JOUR AU - Zelmanowitz, J. TI - Commutative Endomorphism Rings JO - Canadian journal of mathematics PY - 1971 SP - 69 EP - 76 VL - 23 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1971-007-x/ DO - 10.4153/CJM-1971-007-x ID - 10_4153_CJM_1971_007_x ER -