@article{01275561, title = {The universal semilattice compactification of a semigroup.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {22}, year = {1999}, pages = {85-89}, doi = {10.1155/S0161171299220856}, zbl = {0916.22004}, language = {en}, url = {http://dml.mathdoc.fr/item/01275561} }
Ebrahimi Vishki, H.R.; Pourabdollah, M.A. The universal semilattice compactification of a semigroup.. International Journal of Mathematics and Mathematical Sciences, Tome 22 (1999) pp. 85-89. doi : 10.1155/S0161171299220856. http://gdmltest.u-ga.fr/item/01275561/