%0 Journal Article %A Chacron, M. %T On a Theorem of Herstein %J Canadian journal of mathematics %D 1969 %P 1348-1353 %V 21 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1969-148-5/ %R 10.4153/CJM-1969-148-5 %F 10_4153_CJM_1969_148_5