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@article{SF_1994__48_3_135296, author = {N.R. Reilly}, title = {Completely regular semigroups as semigroups of partial transformations.}, journal = {Semigroup forum}, pages = {50--62}, publisher = {mathdoc}, volume = {48}, number = {3}, year = {1994}, zbl = {0798.20054}, url = {http://geodesic.mathdoc.fr/item/SF_1994__48_3_135296/} }
N.R. Reilly. Completely regular semigroups as semigroups of partial transformations.. Semigroup forum, Tome 48 (1994) no. 3, pp. 50-62. http://geodesic.mathdoc.fr/item/SF_1994__48_3_135296/