@article{GDZPPN00203204X, title = {A functional equation for quadratic forms (Short Communication).}, journal = {Aequationes mathematicae}, volume = {19}, year = {1979}, pages = {305-306}, url = {http://dml.mathdoc.fr/item/GDZPPN00203204X} }
Davison, T.M.K. A functional equation for quadratic forms (Short Communication).. Aequationes mathematicae, Tome 19 (1979) pp. 305-306. http://gdmltest.u-ga.fr/item/GDZPPN00203204X/