@article{ISU_2013_13_4_a10,
     author = {V. A. Matveev},
     title = {An estimate of a~certain summatory functions class},
     journal = {Izvestiya of Saratov University. Mathematics. Mechanics. Informatics},
     pages = {72--76},
     publisher = {mathdoc},
     volume = {13},
     number = {4},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ISU_2013_13_4_a10/}
}