@article{1102947727, author = {Nemitz, W. and Whaley, T.}, title = {Varieties of implicative semi-lattices. II.}, journal = {Pacific J. Math.}, volume = {49}, number = {2}, year = {1973}, pages = { 303-311}, language = {en}, url = {http://dml.mathdoc.fr/item/1102947727} }
Nemitz, W.; Whaley, T. Varieties of implicative semi-lattices. II.. Pacific J. Math., Tome 49 (1973) no. 2, pp. 303-311. http://gdmltest.u-ga.fr/item/1102947727/