@article{Gibbons2005:Metamorphisms,
  title = "Metamorphisms: Streaming Representation-Changers",
  author = "Jeremy Gibbons",
  year = "2007",
  journal = "Science of Computer Programming",
  number = "2",
  pages = "108-139",
  url = "http://www.comlab.ox.ac.uk/oucl/work/jeremy.gibbons/publications/metamorphisms-scp.pdf",
  volume = "65",
  doi = "10.1016/j.scico.2006.01.006",
}