Leonard F. Klosinski, Gerald L. Alexanderson, Loren C. Larson. The Sixty-Third William Lowell Putnam Mathematical Competition. The American Mathematical Monthly, 110(8):718-726, 2003. [doi]
@article{KlosinskiAL03,
title = {The Sixty-Third William Lowell Putnam Mathematical Competition},
author = {Leonard F. Klosinski and Gerald L. Alexanderson and Loren C. Larson},
year = {2003},
url = {http://www.jstor.org/stable/3647854},
researchr = {https://researchr.org/publication/KlosinskiAL03},
cites = {0},
citedby = {0},
journal = {The American Mathematical Monthly},
volume = {110},
number = {8},
pages = {718-726},
}