%0 Journal Article %A Dumesnil, Jill A. %T On $m$-semigroups %J Czechoslovak Mathematical Journal %D 1997 %P 33-45 %V 47 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMJ_1997__47_1_a2/ %G en %F CMJ_1997__47_1_a2