@article{IVM_1986_6_a2,
     author = {D. A. Mit'kin},
     title = {An elementary proof of {A.~Weil's} estimate for rational trigonometric sums with a~prime denominator},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {14--17},
     publisher = {mathdoc},
     number = {6},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1986_6_a2/}
}