Über "Super perfect numbers".
Kanold, H.-J.
Elemente der Mathematik, Tome 24 (1969), p. 61-62 / Harvested from Göttinger Digitalisierungszentrum
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Publié le : 1969-01-01
EUDML-ID : urn:eudml:doc:140929 
@article{GDZPPN002076845,
     title = {\"Uber "Super perfect numbers".},
     journal = {Elemente der Mathematik},
     volume = {24},
     year = {1969},
     pages = {61-62},
     zbl = {0174.33702},
     url = {http://dml.mathdoc.fr/item/GDZPPN002076845}
}

Kanold, H.-J. Über "Super perfect numbers".. Elemente der Mathematik, Tome 24 (1969) pp. 61-62. http://gdmltest.u-ga.fr/item/GDZPPN002076845/