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@article{DAN_1971_200_2_a10, author = {G. A. Popov}, title = {Distribution of the values of an additive function in a progression}, journal = {Doklady Akademii Nauk}, pages = {290--293}, publisher = {mathdoc}, volume = {200}, number = {2}, year = {1971}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1971_200_2_a10/} }
G. A. Popov. Distribution of the values of an additive function in a progression. Doklady Akademii Nauk, Tome 200 (1971) no. 2, pp. 290-293. http://geodesic.mathdoc.fr/item/DAN_1971_200_2_a10/