@article{garcia-wachs,
  title = "An Optimal, Purely Functional Implementation of the Garsia-Wachs Algorithm",
  author = "Richard S. Bird",
  year = "2020",
  journal = "Journal of Functional Programming",
  pages = "e3",
  volume = "30",
  doi = "10.1017/S0956796819000194",
}