@inproceedings{Bulatov04:partition,
  title = "The complexity of partition functions",
  author = "Andrei A. Bulatov and Martin Grohe",
  year = "2004",
  booktitle = "Proceedings of the 31st International Colloquium on Automata, Languages and Programming (ICALP'04)",
  pages = "294-306",
  series = "Lecture Notes in Computer Science",
  url = "http://springerlink.metapress.com/openurl.asp?genre=article{\&}issn=0302-9743{\&}volume=3142{\&}spage=294",
  volume = "3142",
}