@article{SF_1977__14_186370,
     author = {F. Pastijn},
     title = {Embedding semigroups in semibands.},
     journal = {Semigroup forum},
     pages = {247--264},
     publisher = {mathdoc},
     volume = {14},
     year = {1977},
     zbl = {0363.20052},
     url = {http://geodesic.mathdoc.fr/item/SF_1977__14_186370/}
}