@article{VMUMM_2010_2_a10,
     author = {G. V. Fedorov},
     title = {Estimation of the sum of values of the divisor function},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {50--53},
     publisher = {mathdoc},
     number = {2},
     year = {2010},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2010_2_a10/}
}