@article{10_21136_CMJ_1991_102487,
     author = {Dr\'apal, Ale\v{s}},
     title = {On a planar construction of quasigroups},
     journal = {Czechoslovak Mathematical Journal},
     pages = {538--548},
     publisher = {mathdoc},
     volume = {41},
     number = {3},
     year = {1991},
     doi = {10.21136/CMJ.1991.102487},
     mrnumber = {1117806},
     zbl = {0752.20037},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1991.102487/}
}