Daniel H. Ullman, Daniel J. Velleman, Douglas B. West. Problems and Solutions. The American Mathematical Monthly, 127(3):274-282, 2020. [doi]
@article{UllmanVW20b,
title = {Problems and Solutions},
author = {Daniel H. Ullman and Daniel J. Velleman and Douglas B. West},
year = {2020},
doi = {10.1080/00029890.2020.1705076},
url = {https://doi.org/10.1080/00029890.2020.1705076},
researchr = {https://researchr.org/publication/UllmanVW20b},
cites = {0},
citedby = {0},
journal = {The American Mathematical Monthly},
volume = {127},
number = {3},
pages = {274-282},
}