@article{GDZPPN002399512,
title = {Zur Definition quadratischer Formen.},
journal = {Mathematische Zeitschrift},
volume = {99},
year = {1967},
pages = {42-45},
zbl = {0146.25903},
url = {http://dml.mathdoc.fr/item/GDZPPN002399512}
}
Röhrl, Helmut. Zur Definition quadratischer Formen.. Mathematische Zeitschrift, Tome 99 (1967) pp. 42-45. http://gdmltest.u-ga.fr/item/GDZPPN002399512/