@article{2335, author = {Carlitz, L.}, title = {Quadratic residues and Tchebycheff polynomials}, journal = {Portugaliae mathematica}, volume = {18}, year = {1959}, pages = {193-198}, zbl = {0098.03702}, mrnumber = {0125059}, language = {en}, url = {http://dml.mathdoc.fr/item/2335} }
Carlitz, L. Quadratic residues and Tchebycheff polynomials. Portugaliae mathematica, Tome 18 (1959) pp. 193-198. http://gdmltest.u-ga.fr/item/2335/