@article{VMUMM_2002_5_a3,
     author = {N. M. Khodzhaev and V. N. Chubarikov},
     title = {Estimates of complete rational trigonometric sums and sums of {Dirichlet} characters},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {17--23},
     publisher = {mathdoc},
     number = {5},
     year = {2002},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2002_5_a3/}
}