@article{10_1007_s10587_011_0069_z,
     author = {Salim, Mohamed A. and Tripe, Adela},
     title = {Idempotents and the multiplicative group of some totally bounded rings},
     journal = {Czechoslovak Mathematical Journal},
     pages = {509--519},
     publisher = {mathdoc},
     volume = {61},
     number = {2},
     year = {2011},
     doi = {10.1007/s10587-011-0069-z},
     mrnumber = {2905419},
     zbl = {1240.16049},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1007/s10587-011-0069-z/}
}