%0 Journal Article %A N. V. Proskurin %T On character sums in finite fields %J Zapiski Nauchnykh Seminarov POMI %D 2020 %P 104-108 %V 490 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_2020_490_a5/ %G ru %F ZNSL_2020_490_a5