@article{1255631818, author = {Mordell, L. J.}, title = {The sign of the Gaussian sum}, journal = {Illinois J. Math.}, volume = {6}, number = {1}, year = {1962}, pages = { 177-180}, language = {en}, url = {http://dml.mathdoc.fr/item/1255631818} }
Mordell, L. J. The sign of the Gaussian sum. Illinois J. Math., Tome 6 (1962) no. 1, pp. 177-180. http://gdmltest.u-ga.fr/item/1255631818/