@article{10_21136_CMJ_1991_102437,
     author = {Novotn\'y, Miroslav},
     title = {Ternary structures and groupoids},
     journal = {Czechoslovak Mathematical Journal},
     pages = {90--98},
     publisher = {mathdoc},
     volume = {41},
     number = {1},
     year = {1991},
     doi = {10.21136/CMJ.1991.102437},
     mrnumber = {1087627},
     zbl = {0790.20090},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1991.102437/}
}