@article{CMUC_1975_16_1_a5,
     author = {Je\v{z}ek, Jaroslav},
     title = {Normal subsets of quasigroups},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {77--85},
     year = {1975},
     volume = {16},
     number = {1},
     mrnumber = {0367104},
     zbl = {0303.20051},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1975_16_1_a5/}
}