@article{GDZPPN001263137, title = {Completely regular semigroups as semigroups of partial transformations.}, journal = {Semigroup forum}, volume = {48}, year = {1994}, pages = {50-62}, zbl = {0798.20054}, url = {http://dml.mathdoc.fr/item/GDZPPN001263137} }
Reilly, N.R. Completely regular semigroups as semigroups of partial transformations.. Semigroup forum, Tome 48 (1994) pp. 50-62. http://gdmltest.u-ga.fr/item/GDZPPN001263137/