@article{CHEB_2019_20_3_a11,
     author = {S. A. Gritsenko and E. Deza and L. V. Varukhina},
     title = {On behavior of arithmetical functions, related to {Chebyshev} function},
     journal = {\v{C}eby\v{s}evskij sbornik},
     pages = {154--164},
     publisher = {mathdoc},
     volume = {20},
     number = {3},
     year = {2019},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/CHEB_2019_20_3_a11/}
}