@article{GDZPPN001257544, title = {The structure semilattice of a compact U.D.C. semigroup.}, journal = {Semigroup forum}, volume = {31}, year = {1985}, pages = {235-250}, zbl = {0549.22002}, url = {http://dml.mathdoc.fr/item/GDZPPN001257544} }
Brown, D.R.; Stepp, J.W. The structure semilattice of a compact U.D.C. semigroup.. Semigroup forum, Tome 31 (1985) pp. 235-250. http://gdmltest.u-ga.fr/item/GDZPPN001257544/