@inproceedings{Bulatov03:trichotomy,
  title = "Towards a Dichotomy Theorem for the Counting Constraint Satisfaction Problem",
  author = "Andrei A. Bulatov and Victor Dalmau",
  year = "2003",
  booktitle = "Proceedings of the 44th Symposium on Foundations of Computer Science (FOCS'03)",
  url = "http://csdl.computer.org/comp/proceedings/focs/2003/2040/00/20400562abs.htm",
}