@article{GDZPPN002367254, title = {Bilineare Transformation quadratischer Formen}, journal = {Mathematische Zeitschrift}, volume = {16}, year = {1923}, pages = {153-160}, zbl = {49.0074.01}, url = {http://dml.mathdoc.fr/item/GDZPPN002367254} }
Brandt, H.,. Bilineare Transformation quadratischer Formen. Mathematische Zeitschrift, Tome 16 (1923) pp. 153-160. http://gdmltest.u-ga.fr/item/GDZPPN002367254/