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@article{IVM_1989_12_a12, author = {M. V. Kudryavtsev}, title = {Structural formulas in a~class of {Heilbronn--Karatsuba} trigonometric sums}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {64--67}, publisher = {mathdoc}, number = {12}, year = {1989}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1989_12_a12/} }
M. V. Kudryavtsev. Structural formulas in a~class of Heilbronn--Karatsuba trigonometric sums. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 12 (1989), pp. 64-67. http://geodesic.mathdoc.fr/item/IVM_1989_12_a12/