@article{CMUC_1981__22_2_a15,
     author = {Ml\v{c}ek, Josef},
     title = {Monotonic valuations and valuations of triads of higher types},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {377--398},
     publisher = {mathdoc},
     volume = {22},
     number = {2},
     year = {1981},
     mrnumber = {620373},
     zbl = {0458.03012},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1981__22_2_a15/}
}