%0 Journal Article %A Kleinfeld, Erwin %T A Generalization of Commutative and Alternative Rings II %J Canadian journal of mathematics %D 1972 %P 728-733 %V 24 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1972-068-7/ %R 10.4153/CJM-1972-068-7 %F 10_4153_CJM_1972_068_7