%0 Journal Article %A S. A. Stepanov %T The estimation of rational trigonometric sums with prime denominator %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1971 %P 346-371 %V 112 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM_1971_112_a22/ %G ru %F TM_1971_112_a22