%0 Journal Article %A V. I. Nechaev %T Trigonometric sums for recurrent sequences %J Doklady Akademii Nauk %D 1972 %P 811-814 %V 206 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1972_206_4_a9/ %G ru %F DAN_1972_206_4_a9