%0 Journal Article %A I. D. Shkredov %A I. E. Shparlinski %T Double character sums with intervals and arbitrary sets %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 2018 %P 258-278 %V 303 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM_2018_303_a18/ %G ru %F TM_2018_303_a18