@article{MOMA_1994__117_3-4_178647,
     author = {John Fountain and Victoria Gould},
     title = {Idempotent {Bounded} {Semi-Groups.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {237--254},
     publisher = {mathdoc},
     volume = {117},
     number = {3-4},
     year = {1994},
     zbl = {0813.20068},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1994__117_3-4_178647/}
}