@article{GDZPPN002053055,
title = {\"Uber die Zerlegung strikte definiter Formen in Quadrate.},
journal = {Commentarii mathematici Helvetici},
volume = {12},
year = {1939},
pages = {317-322},
zbl = {66.0051.01},
url = {http://dml.mathdoc.fr/item/GDZPPN002053055}
}
Habicht, W. Über die Zerlegung strikte definiter Formen in Quadrate.. Commentarii mathematici Helvetici, Tome 12 (1939) pp. 317-322. http://gdmltest.u-ga.fr/item/GDZPPN002053055/