@article{GDZPPN002550199,
title = {A functional equation for quadratic forms.},
journal = {Aequationes mathematicae},
volume = {20},
year = {1980},
pages = {1-7},
zbl = {0451.39008},
url = {http://dml.mathdoc.fr/item/GDZPPN002550199}
}
Davison, T.M.K. A functional equation for quadratic forms.. Aequationes mathematicae, Tome 20 (1980) pp. 1-7. http://gdmltest.u-ga.fr/item/GDZPPN002550199/