@article{DAN_1988_300_5_a0,
     author = {L. A. Bassalygo and V. A. Zinov'ev and S. N. Litsyn},
     title = {A lower bound for complete trigonometric sums in terms of multiple},
     journal = {Doklady Akademii Nauk},
     pages = {1033--1036},
     publisher = {mathdoc},
     volume = {300},
     number = {5},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1988_300_5_a0/}
}