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@article{IM2_1973_7_6_a0, author = {A. A. Karatsuba}, title = {The mean value of the modulus of a~trigonometric sum}, journal = {Izvestiya. Mathematics }, pages = {1199--1223}, publisher = {mathdoc}, volume = {7}, number = {6}, year = {1973}, language = {en}, url = {http://geodesic.mathdoc.fr/item/IM2_1973_7_6_a0/} }
A. A. Karatsuba. The mean value of the modulus of a~trigonometric sum. Izvestiya. Mathematics , Tome 7 (1973) no. 6, pp. 1199-1223. http://geodesic.mathdoc.fr/item/IM2_1973_7_6_a0/