%0 Journal Article %A Brandon Hanson %T Estimates for character sums with various convolutions %J Acta Arithmetica %D 2017 %P 133-146 %V 179 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa8404-5-2017/ %R 10.4064/aa8404-5-2017 %G en %F 10_4064_aa8404_5_2017