%0 Journal Article %A Kleinfeld, Erwin %T On rings with alternators in the commutative center %J Portugaliae mathematica %D 1993 %P 297-304 %V 50 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/PORMA_1993__50_3_115690/ %G en %F PORMA_1993__50_3_115690