%0 Journal Article %A Igor E. Shparlinski %T Exponential Sums with Farey Fractions %J Bulletin of the Polish Academy of Sciences. Mathematics %D 2009 %P 101-107 %V 57 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ba57-2-2/ %R 10.4064/ba57-2-2 %G en %F 10_4064_ba57_2_2