Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{CMH_1932__4_138572, author = {Arnold Emch}, title = {Geometrische {Anwendungen} der bin\"aren (n, n)- {Verwandtschaft.}}, journal = {Commentarii mathematici Helvetici}, pages = {65--73}, publisher = {mathdoc}, volume = {4}, year = {1932}, zbl = {0005.11501}, url = {http://geodesic.mathdoc.fr/item/CMH_1932__4_138572/} }
Arnold Emch. Geometrische Anwendungen der binären (n, n)- Verwandtschaft.. Commentarii mathematici Helvetici, Tome 4 (1932), pp. 65-73. http://geodesic.mathdoc.fr/item/CMH_1932__4_138572/