@article{AUCMP_2001__42_1_a1,
     author = {Kepka, Tom\'a\v{s}},
     title = {Quasigroups of fractions},
     journal = {Acta Universitatis Carolinae. Mathematica et Physica},
     pages = {3--81},
     publisher = {mathdoc},
     volume = {42},
     number = {1},
     year = {2001},
     mrnumber = {1864998},
     zbl = {1005.20047},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/item/AUCMP_2001__42_1_a1/}
}