TY - JOUR AU - I. D. Shkredov AU - I. E. Shparlinski TI - Double character sums with intervals and arbitrary sets JO - Informatics and Automation PY - 2018 SP - 258 EP - 278 VL - 303 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TRSPY_2018_303_a18/ LA - ru ID - TRSPY_2018_303_a18 ER -