Franck Beaucoup, Tamás Erdélyi. Problem 11226. The American Mathematical Monthly, 113(5):460, 2006. [doi]
@article{BeaucoupE06,
title = {Problem 11226},
author = {Franck Beaucoup and Tamás Erdélyi},
year = {2006},
url = {http://www.jstor.org/stable/27641959},
researchr = {https://researchr.org/publication/BeaucoupE06},
cites = {0},
citedby = {0},
journal = {The American Mathematical Monthly},
volume = {113},
number = {5},
pages = {460},
}