@article{RM_1979_34_3_a9,
     author = {L. A. Knizhnerman and V. Z. Sokolinskii},
     title = {Some estimates of rational trigonometric sums and sums of {Legendre} symbols},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {203--204},
     publisher = {mathdoc},
     volume = {34},
     number = {3},
     year = {1979},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1979_34_3_a9/}
}