@inproceedings{Cohen03:new,
  title = "A New Classs of Binary CSPs for which Arc-Constistency Is a Decision Procedure",
  author = "David A. Cohen",
  year = "2003",
  booktitle = "Proceedings of the 9th International Conference on Principles and Practice of Constraint Programming (CP'03)",
  pages = "807-811",
  series = "Lecture Notes in Computer Science",
  url = "http://springerlink.metapress.com/openurl.asp?genre=article{\&}issn=0302-9743{\&}volume=2833{\&}spage=807",
  volume = "2833",
}