@article{LagariasPortaStolarsky1994,
  author    = {{Jeffey C. Lagarias, Horacio A. Porta and Kenneth B. Stolarsky}},
  title     = {{Asymmetric Tent Map Expansions II. Purely Periodic Points}},
  journal   = {{Illinois J. Math.}},
  year      = {{1994}},
  volume    = {{38}},
  pages     = {{574--588}},
  note      = {{MR 96b:58093, Zbl 809:11042}},
}