@article{TRSPY_1977_143_a12,
     author = {S. B. Stechkin},
     title = {An estimate of a~complete rational trigonometric sum},
     journal = {Informatics and Automation},
     pages = {188--207},
     publisher = {mathdoc},
     volume = {143},
     year = {1977},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1977_143_a12/}
}