@article{TM_1977_143_a10,
     author = {S. A. Stepanov},
     title = {Lower bounds for incomplete sums of the characters of polynomials},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {175--177},
     publisher = {mathdoc},
     volume = {143},
     year = {1977},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_1977_143_a10/}
}