@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/}
}