@article{CMUC_1970__11_4_a0,
     author = {M\"unzov\'a-Demlov\'a, Marie},
     title = {Transformations determining uniquely a monoid},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {595--618},
     publisher = {mathdoc},
     volume = {11},
     number = {4},
     year = {1970},
     mrnumber = {0279217},
     zbl = {0211.33202},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1970__11_4_a0/}
}