@article{10_1017_S0017089500001099,
     author = {McMorris, F. R.},
     title = {The quotient semigroup of a semigroup that is a semilattice of groups{\textdagger}},
     journal = {Glasgow mathematical journal},
     pages = {18--23},
     year = {1971},
     volume = {12},
     number = {1},
     doi = {10.1017/S0017089500001099},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500001099/}
}