@article{MZM_1988_44_4_a5,
     author = {E. E. Marenich},
     title = {Limits of values of the {M\"obius} function},
     journal = {Matemati\v{c}eskie zametki},
     pages = {469--487},
     publisher = {mathdoc},
     volume = {44},
     number = {4},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1988_44_4_a5/}
}