TY - JOUR AU - J. Meng TI - Implicative commutative semigroups are equivalent to a class of BCK algebras. JO - Semigroup forum PY - 1995 SP - 89 EP - 96 VL - 50 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SF_1995__50_3_135368/ ID - SF_1995__50_3_135368 ER -