%0 Journal Article %A J. Meng %T Implicative commutative semigroups are equivalent to a class of BCK algebras. %J Semigroup forum %D 1995 %P 89-96 %V 50 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/SF_1995__50_3_135368/ %F SF_1995__50_3_135368