%0 Journal Article %A Kearnes, Keith A. %T Atomicity And Nilpotence %J Canadian journal of mathematics %D 1990 %P 365-382 %V 42 %N 2 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1990-020-1/ %R 10.4153/CJM-1990-020-1 %F 10_4153_CJM_1990_020_1