@article{Everett1977,
  author    = {{C. J. Everett}},
  title     = {{Iteration of the number theoretic function $f(2n)=n, f(2n+1)=3n+2$}},
  journal   = {{Advances in Math.}},
  year      = {{1977}},
  volume    = {{25}},
  pages     = {{42--45}},
  doi       = {{10.1016/0001-8708(77)90087-1}},
  url       = {{https://www.sciencedirect.com/science/article/pii/0001870877900871}},
  note      = {{MR 56#15552}},
}