@inproceedings{align,
  title = "Incremental Updates for Efficient Bidirectional Transformations",
  author = "Meng Wang and Jeremy Gibbons and Nicolas Wu",
  year = "2011",
  booktitle = "ICFP",
  month = "September",
  url = "http://www.comlab.ox.ac.uk/jeremy.gibbons/publications/align.pdf",
}