@article{1256064238, author = {Stein, Alan H.}, title = {Exponential sums of sum-of-digit functions}, journal = {Illinois J. Math.}, volume = {30}, number = {3}, year = {1986}, pages = { 660-675}, language = {en}, url = {http://dml.mathdoc.fr/item/1256064238} }
Stein, Alan H. Exponential sums of sum-of-digit functions. Illinois J. Math., Tome 30 (1986) no. 3, pp. 660-675. http://gdmltest.u-ga.fr/item/1256064238/