@article{Rawsthorne1985,
  author    = {{Daniel A. Rawsthorne}},
  title     = {{Imitation of an iteration}},
  journal   = {{Math. Magazine}},
  year      = {{1985}},
  volume    = {{58}},
  pages     = {{172--176}},
  note      = {{MR 86i:40001}},
}