%0 Journal Article %A Levitzki, Jakob %T On the equivalence of the nilpotent elements of a semi simple ring %J Compositio Mathematica %D 1938 %P 392-402 %V 5 %I Johnson Reprint Corporation %U http://archive.numdam.org/item/CM_1938__5__392_0/ %G en %F CM_1938__5__392_0