@article{VTGU_2018_51_a2,
     author = {V. M. Zyuz'kov},
     title = {Around {Euler's} theorem on sums of divisors},
     journal = {Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika},
     pages = {19--32},
     publisher = {mathdoc},
     number = {51},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VTGU_2018_51_a2/}
}