@article{CMUC_1991__32_2_a7,
     author = {Martinon, Antonio},
     title = {Generating real maps on a biordered set},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {265--272},
     publisher = {mathdoc},
     volume = {32},
     number = {2},
     year = {1991},
     mrnumber = {1137787},
     zbl = {0757.47013},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1991__32_2_a7/}
}