@article{GDZPPN001265393, title = {On ordered filters of implicative semigroups.}, journal = {Semigroup forum}, volume = {54}, year = {1997}, pages = {75-82}, zbl = {0862.06005}, url = {http://dml.mathdoc.fr/item/GDZPPN001265393} }
Jun, Y.B.; Meng, J.; Xin, X.L. On ordered filters of implicative semigroups.. Semigroup forum, Tome 54 (1997) pp. 75-82. http://gdmltest.u-ga.fr/item/GDZPPN001265393/