@article{CMUC_2008__49_4_a2,
     author = {Stanovsk\'y, David},
     title = {Distributive groupoids are symmetric-by-medial: {An} elementary proof},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {541--546},
     publisher = {mathdoc},
     volume = {49},
     number = {4},
     year = {2008},
     mrnumber = {2493937},
     zbl = {1192.20050},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_2008__49_4_a2/}
}