@article{AUCMP_1979__20_1_a3,
     author = {Kepka, Tom\'a\v{s}},
     title = {Medial division groupoids},
     journal = {Acta Universitatis Carolinae. Mathematica et Physica},
     pages = {41--60},
     publisher = {mathdoc},
     volume = {20},
     number = {1},
     year = {1979},
     mrnumber = {0549907},
     zbl = {0417.20058},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/item/AUCMP_1979__20_1_a3/}
}