On totient abundant numbers.
Loomis, Paul ; Luca, Florian
Integers, Tome 8 (2008), / Harvested from The Electronic Library of Mathematics
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Publié le : 2008-01-01
EUDML-ID : urn:eudml:doc:129243 
@article{05242350,
     title = {On totient abundant numbers.},
     journal = {Integers},
     volume = {8},
     year = {2008},
     zbl = {1146.11050},
     language = {en},
     url = {http://dml.mathdoc.fr/item/05242350}
}

Loomis, Paul; Luca, Florian. On totient abundant numbers.. Integers, Tome 8 (2008) . http://gdmltest.u-ga.fr/item/05242350/