@article{10_1017_S0017089500008004,
     author = {El-Qallali, Abdulsalam},
     title = {Left regular bands of groups of left quotients},
     journal = {Glasgow mathematical journal},
     pages = {29--40},
     year = {1991},
     volume = {33},
     number = {1},
     doi = {10.1017/S0017089500008004},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500008004/}
}