On the equivalence of the nilpotent elements of a semi simple ring
Compositio Mathematica, Volume 5  (1938), p. 392-402
@article{CM_1938__5__392_0,
author = {Levitzki, Jakob},
title = {On the equivalence of the nilpotent elements of a semi simple ring},
journal = {Compositio Mathematica},
publisher = {Johnson Reprint Corporation},
volume = {5},
year = {1938},
pages = {392-402},
zbl = {0018.29005},
language = {en},
url = {http://www.numdam.org/item/CM_1938__5__392_0}
}

Levitzki, Jakob. On the equivalence of the nilpotent elements of a semi simple ring. Compositio Mathematica, Volume 5 (1938) , pp. 392-402. http://www.numdam.org/item/CM_1938__5__392_0/