@inproceedings{Cooper2008:hybrid,
  title = "Hybrid tractable {CSP}s which generalize tree structure",
  author = "Martin C. Cooper and Peter G. Jeavons and Andr{\'a}s Z. Salamon",
  year = "2008",
  booktitle = "{ECAI} 2008, Proceedings of the 18th European Conference on Artificial Intelligence, July 21--25, Patras, Greece",
  editor = "Malik Ghallab, Constantine D. Spyropoulos, Nikos Fakotakis, Nikos Avouris",
  isbn = "978-1-58603-891-5",
  issn = "0922-6389",
  note = "Best paper award.",
  pages = "530--534",
  publisher = "IOS Press",
  series = "Frontiers in Artificial Intelligence and Applications",
  url = "http://www.gaon.net/andras/academic/cjs-ecai2008.pdf",
  volume = "178",
}