@article{IM2_1967_1_3_a9,
     author = {B. V. Levin and A. S. Fainleib},
     title = {A summation method for multiplicative functions},
     journal = {Izvestiya. Mathematics },
     pages = {677--690},
     publisher = {mathdoc},
     volume = {1},
     number = {3},
     year = {1967},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1967_1_3_a9/}
}