@article{Hercher2023,
  author    = {{Christian Hercher}},
  title     = {{There are no Collatz $m$-Cycles with $m \leq 91$}},
  journal   = {{Journal of Integer Sequences}},
  year      = {{2023}},
  volume    = {{26}},
  url       = {{https://cs.uwaterloo.ca/journals/JIS/VOL26/Hercher/hercher4.html}},
  article   = {{23.3.5}},
}