Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MZ_1924__20_167797, author = {H. Brandt}, title = {Bilineare {Transformation} quatern\"arer quadratischer {Formen}}, journal = {Mathematische Zeitschrift}, pages = {223--230}, publisher = {mathdoc}, volume = {20}, year = {1924}, zbl = {50.0054.02}, url = {http://geodesic.mathdoc.fr/item/MZ_1924__20_167797/} }
H. Brandt. Bilineare Transformation quaternärer quadratischer Formen. Mathematische Zeitschrift, Tome 20 (1924), pp. 223-230. http://geodesic.mathdoc.fr/item/MZ_1924__20_167797/