David Applegate, Jeffrey C. Lagarias. Lower bounds for the total stopping time of 3x + 1 iterates. Math. Comput., 72(242):1035-1049, 2003.
@article{ApplegateL03,
title = {Lower bounds for the total stopping time of 3x + 1 iterates},
author = {David Applegate and Jeffrey C. Lagarias},
year = {2003},
tags = {C++},
researchr = {https://researchr.org/publication/ApplegateL03},
cites = {0},
citedby = {0},
journal = {Math. Comput.},
volume = {72},
number = {242},
pages = {1035-1049},
}