@inproceedings{Hin09Han,
  title = "Functional pearl: la tour d'{H}ano\"{\i}",
  author = "Hinze, Ralf",
  year = "2009",
  address = "New York, NY, USA",
  booktitle = "Proceedings of the 14th {ACM SIGPLAN} international conference on Functional Programming (ICFP '09)",
  editor = "Tolmach, Andrew",
  isbn = "978-1-60558-332-7",
  location = "Edinburgh, Scotland",
  pages = "3-10",
  publisher = "ACM",
  doi = "10.1145/1596550.1596555",
}