Daniel H. Ullman, Daniel J. Velleman. Differences of Bijections. The American Mathematical Monthly, 126(3):199-216, 2019. [doi]
@article{UllmanV19,
title = {Differences of Bijections},
author = {Daniel H. Ullman and Daniel J. Velleman},
year = {2019},
doi = {10.1080/00029890.2019.1546077},
url = {https://doi.org/10.1080/00029890.2019.1546077},
researchr = {https://researchr.org/publication/UllmanV19},
cites = {0},
citedby = {0},
journal = {The American Mathematical Monthly},
volume = {126},
number = {3},
pages = {199-216},
}