@article{SF_1984__28_134646,
     author = {J.M. Howie and E. Giraldes},
     title = {Embedding finite semigroups in finite semibands of minimal depth.},
     journal = {Semigroup forum},
     pages = {135--142},
     publisher = {mathdoc},
     volume = {28},
     year = {1984},
     zbl = {0533.20029},
     url = {http://geodesic.mathdoc.fr/item/SF_1984__28_134646/}
}