%0 Journal Article %A Matti Jutila %T Mean value estimates for exponential sums with applications to $L$-functions %J Acta Arithmetica %D 1991 %P 93-114 %V 57 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-57-2-93-114/ %R 10.4064/aa-57-2-93-114 %G en %F 10_4064_aa_57_2_93_114