@article{SF_1983__26_134596,
     author = {M. Castellano},
     title = {Monoids on a {M\"obius} band.},
     journal = {Semigroup forum},
     pages = {111--116},
     publisher = {mathdoc},
     volume = {26},
     year = {1983},
     zbl = {0515.22004},
     url = {http://geodesic.mathdoc.fr/item/SF_1983__26_134596/}
}