Stephan Ramon Garcia, Vincent Selhorst-Jones, Daniel E. Poore, Noah Simon. Quotient Sets and Diophantine Equations. The American Mathematical Monthly, 118(8):704-711, 2011. [doi]
@article{GarciaSPS11,
title = {Quotient Sets and Diophantine Equations},
author = {Stephan Ramon Garcia and Vincent Selhorst-Jones and Daniel E. Poore and Noah Simon},
year = {2011},
doi = {10.4169/amer.math.monthly.118.08.704},
url = {http://dx.doi.org/10.4169/amer.math.monthly.118.08.704},
researchr = {https://researchr.org/publication/GarciaSPS11},
cites = {0},
citedby = {0},
journal = {The American Mathematical Monthly},
volume = {118},
number = {8},
pages = {704-711},
}