%0 Journal Article %A Shai Haran %T Riesz potentials and explicit sums in arithmetic. %J Inventiones mathematicae %D 1990 %P 697-704 %V 101 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM_1990__101_2_143822/ %F IM_1990__101_2_143822