Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{MASLO_1965__15_1_a1, author = {H\'ajek, Petr}, title = {Die {Sz\'aszchen} {Gruppoide}}, journal = {Mathematica slovaca}, pages = {15--42}, publisher = {mathdoc}, volume = {15}, number = {1}, year = {1965}, language = {ge}, url = {http://geodesic.mathdoc.fr/item/MASLO_1965__15_1_a1/} }
Hájek, Petr. Die Szászchen Gruppoide. Mathematica slovaca, Tome 15 (1965) no. 1, pp. 15-42. http://geodesic.mathdoc.fr/item/MASLO_1965__15_1_a1/