@article{AUPO_1993__32_1_a5,
     author = {Hala\v{s}, Radom{\'\i}r},
     title = {Concept lattices of quasiordered sets},
     journal = {Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica},
     pages = {43--47},
     publisher = {mathdoc},
     volume = {32},
     number = {1},
     year = {1993},
     mrnumber = {1273168},
     zbl = {0798.06008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AUPO_1993__32_1_a5/}
}