An upper bound for odd perfect numbers.
Nielsen, Pace P.
Integers, Tome 3 (2003), / Harvested from The Electronic Library of Mathematics
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Publié le : 2003-01-01
EUDML-ID : urn:eudml:doc:125856 
@article{02124064,
     title = {An upper bound for odd perfect numbers.},
     journal = {Integers},
     volume = {3},
     year = {2003},
     zbl = {1085.11003},
     language = {en},
     url = {http://dml.mathdoc.fr/item/02124064}
}

Nielsen, Pace P. An upper bound for odd perfect numbers.. Integers, Tome 3 (2003) . http://gdmltest.u-ga.fr/item/02124064/