@article{CMUC_1981__22_3_a5,
     author = {Je\v{z}ek, Jaroslav and Kepka, Tom\'a\v{s}},
     title = {Semigroup representations of medial groupoids},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {513--524},
     publisher = {mathdoc},
     volume = {22},
     number = {3},
     year = {1981},
     mrnumber = {633579},
     zbl = {0492.08001},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1981__22_3_a5/}
}