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@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/} }
S. A. Stepanov. Lower bounds for incomplete sums of the characters of polynomials. Trudy Matematicheskogo Instituta imeni V.A. Steklova, Analytic number theory, mathematical analysis and their applications, Tome 143 (1977), pp. 175-177. http://geodesic.mathdoc.fr/item/TM_1977_143_a10/