@article{GDZPPN002367920,
title = {Bilineare Transformation quatern\"arer quadratischer Formen},
journal = {Mathematische Zeitschrift},
volume = {20},
year = {1924},
pages = {223-230},
zbl = {50.0054.02},
url = {http://dml.mathdoc.fr/item/GDZPPN002367920}
}
Brandt, H. Bilineare Transformation quaternärer quadratischer Formen. Mathematische Zeitschrift, Tome 20 (1924) pp. 223-230. http://gdmltest.u-ga.fr/item/GDZPPN002367920/