@inproceedings{kz12:soda,
  title = "The complexity of conservative valued CSPs",
  author = "Vladimir Kolmogorov and Stanislav \v{Z}ivn\'y",
  year = "2012",
  booktitle = "Proceedings of the 23rd ACM-SIAM Symposium on Discrete Algorithms (SODA'12)",
  note = "Preprint: http://zivny.cz/publications/kz12soda-preprint.pdf",
  pages = "750--759",
  url = "http://dl.acm.org/citation.cfm?id=2095177",
}