%0 Journal Article %A Du, Yongguang %A Liu, Huaning %T On the mean value of the mixed exponential sums with Dirichlet characters and general Gauss sum %J Czechoslovak Mathematical Journal %D 2013 %P 461-473 %V 63 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.1007/s10587-013-0030-4/ %R 10.1007/s10587-013-0030-4 %G en %F 10_1007_s10587_013_0030_4