@article{HiP06Fin,
  title = "Finger trees: a simple general-purpose data structure",
  author = "Hinze, Ralf and Paterson, Ross",
  year = "2006",
  journal = "JFP",
  number = "2",
  pages = "197-217",
  volume = "16",
  doi = "10.1017/S0956796805005769",
}