Steve Butler, Ron Graham 0001, Richard Stong. Inserting Plus Signs and Adding. The American Mathematical Monthly, 123(3):274-279, 2016. [doi]
@article{ButlerGS16,
title = {Inserting Plus Signs and Adding},
author = {Steve Butler and Ron Graham 0001 and Richard Stong},
year = {2016},
url = {https://www.tandfonline.com/doi/abs/10.4169/amer.math.monthly.123.3.274},
researchr = {https://researchr.org/publication/ButlerGS16},
cites = {0},
citedby = {0},
journal = {The American Mathematical Monthly},
volume = {123},
number = {3},
pages = {274-279},
}