@article{CMH_1932__4_138572,
     author = {Arnold Emch},
     title = {Geometrische {Anwendungen} der bin\"aren (n, n)- {Verwandtschaft.}},
     journal = {Commentarii mathematici Helvetici},
     pages = {65--73},
     year = {1932},
     volume = {4},
     zbl = {0005.11501},
     url = {http://geodesic.mathdoc.fr/item/CMH_1932__4_138572/}
}