@article{VTGU_2014_6_a0,
     author = {R. Z. Ahmadullin},
     title = {On odd perfect numbers},
     journal = {Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika},
     pages = {5--18},
     publisher = {mathdoc},
     number = {6},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VTGU_2014_6_a0/}
}