@article{AUCMP_2004__45_1_a6,
     author = {Kepka, Tom\'a\v{s} and P\v{r}{\'\i}hoda, Pavel and \v{S}\v{t}ov{\'\i}\v{c}ek, Jan},
     title = {Unions of subquasigroups},
     journal = {Acta Universitatis Carolinae. Mathematica et Physica},
     pages = {43--54},
     publisher = {mathdoc},
     volume = {45},
     number = {1},
     year = {2004},
     mrnumber = {2109693},
     zbl = {1076.20064},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/item/AUCMP_2004__45_1_a6/}
}