@article{ARM_1989__25_1-2_a1,
     author = {Nov\'ak, V{\'\i}t\v{e}zslav and Novotn\'y, Miroslav},
     title = {Transitive ternary relations and quasiorderings},
     journal = {Archivum mathematicum},
     pages = {5--12},
     publisher = {mathdoc},
     volume = {25},
     number = {1-2},
     year = {1989},
     mrnumber = {1189193},
     zbl = {0714.06001},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_1989__25_1-2_a1/}
}