@article{GDZPPN001257854, title = {Ideals of the Stone-Cech compactification of semigroups.}, journal = {Semigroup forum}, volume = {31}, year = {1985}, pages = {201-214}, zbl = {0576.22005}, url = {http://dml.mathdoc.fr/item/GDZPPN001257854} }
Umoh, H.M. Ideals of the Stone-Cech compactification of semigroups.. Semigroup forum, Tome 31 (1985) pp. 201-214. http://gdmltest.u-ga.fr/item/GDZPPN001257854/