Paul Pollack. Finiteness Theorems for Perfect Numbers and Their Kin. The American Mathematical Monthly, 119(8):670-681, 2012. [doi]
@article{Pollack12,
title = {Finiteness Theorems for Perfect Numbers and Their Kin},
author = {Paul Pollack},
year = {2012},
doi = {10.4169/amer.math.monthly.119.08.670},
url = {http://dx.doi.org/10.4169/amer.math.monthly.119.08.670},
researchr = {https://researchr.org/publication/Pollack12},
cites = {0},
citedby = {0},
journal = {The American Mathematical Monthly},
volume = {119},
number = {8},
pages = {670-681},
}