TY - JOUR AU - Kleinfeld, Erwin TI - On rings with alternators in the commutative center JO - Portugaliae mathematica PY - 1993 SP - 297 EP - 304 VL - 50 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/PORMA_1993__50_3_115690/ LA - en ID - PORMA_1993__50_3_115690 ER -