Voir la notice de l'article provenant de la source Novi sad journal of mathematics website
@article{NSJOM_1982_12_Nonea_30, author = {Stojakovi\'c Zoran}, title = {On bisymmetric [n,m]- groupoids}, journal = {Novi Sad Journal of Mathematics}, pages = {399-405}, publisher = {mathdoc}, volume = {12}, year = {1982}, url = {http://geodesic.mathdoc.fr/item/NSJOM_1982_12_Nonea_30/} }
Stojaković Zoran. On bisymmetric [n,m]- groupoids. Novi Sad Journal of Mathematics, Tome 12 (1982). http://geodesic.mathdoc.fr/item/NSJOM_1982_12_Nonea_30/