@article{DAN_1963_149_2_a6,
     author = {A. A. Karatsuba and N. M. Korobov},
     title = {A mean-value theorem},
     journal = {Doklady Akademii Nauk},
     pages = {245--248},
     publisher = {mathdoc},
     volume = {149},
     number = {2},
     year = {1963},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1963_149_2_a6/}
}