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@article{SF_1995__50_3_135368, author = {J. Meng}, title = {Implicative commutative semigroups are equivalent to a class of {BCK} algebras.}, journal = {Semigroup forum}, pages = {89--96}, publisher = {mathdoc}, volume = {50}, number = {3}, year = {1995}, zbl = {0807.06011}, url = {http://geodesic.mathdoc.fr/item/SF_1995__50_3_135368/} }
J. Meng. Implicative commutative semigroups are equivalent to a class of BCK algebras.. Semigroup forum, Tome 50 (1995) no. 3, pp. 89-96. http://geodesic.mathdoc.fr/item/SF_1995__50_3_135368/