@article{AUPO_1993_32_1_a12,
     author = {Machala, Franti\v{s}ek},
     title = {Isomorphismen von {Kontexten} und {Konzeptualverb\"anden}},
     journal = {Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica},
     pages = {123--140},
     year = {1993},
     volume = {32},
     number = {1},
     mrnumber = {1273175},
     zbl = {0798.06007},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/AUPO_1993_32_1_a12/}
}