Voir la notice de l'article provenant de la source Mathematicac Balkanica website
@article{MABA_2000_14_1-2_a3, author = {B. Davvaz}, title = {On {Polygroups} and {Permutation} {Polygroups}}, journal = {Mathematica balkanica}, pages = {41}, publisher = {mathdoc}, volume = {14}, number = {1-2}, year = {2000}, url = {http://geodesic.mathdoc.fr/item/MABA_2000_14_1-2_a3/} }
B. Davvaz. On Polygroups and Permutation Polygroups. Mathematica balkanica, Tome 14 (2000) no. 1-2, p. 41. http://geodesic.mathdoc.fr/item/MABA_2000_14_1-2_a3/