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@article{SF_1977__15_134245, author = {A.I. Roset}, title = {Topologically 0-simple semigroups.}, journal = {Semigroup forum}, pages = {149--158}, publisher = {mathdoc}, volume = {15}, year = {1977}, zbl = {0378.22005}, url = {http://geodesic.mathdoc.fr/item/SF_1977__15_134245/} }
A.I. Roset. Topologically 0-simple semigroups.. Semigroup forum, Tome 15 (1977), pp. 149-158. http://geodesic.mathdoc.fr/item/SF_1977__15_134245/