@article{DAN_1970_193_5_a7,
     author = {B. V. Levin and N. M. Timofeev},
     title = {Sums of multiplicative functions},
     journal = {Doklady Akademii Nauk},
     pages = {992--995},
     publisher = {mathdoc},
     volume = {193},
     number = {5},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1970_193_5_a7/}
}