@article{ADM_2009_2_a2,
     author = {Jan Ga{\l}uszka},
     title = {Codes of groupoids with one-sided quasigroup conditions},
     journal = {Algebra and discrete mathematics},
     pages = {27--44},
     publisher = {mathdoc},
     number = {2},
     year = {2009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ADM_2009_2_a2/}
}