1. A. Bulatov, A dichotomy theorem for constraints on a three-element set, in: Proceedings of 43rd IEEE Symposium on Foundations of Computer Science, 2002, pp. 649–658.
2. Constraint satisfaction, bounded treewidth, and finite-variable logics;Dalmau,2002
3. A. Bulatov, Tractable conservative constraint satisfaction problems, in: Proceedings of 18th IEEE Symposium on Logic in Computer Science (LICS '03), 2003, pp. 321–330, extended version appears as Oxford University technical report PRG-RR–03-01.
4. The complexity of homomorphism and constraint satisfaction problems seen from the other side;Grohe;J. ACM,2007
5. V. Dalmau, Mal'tsev constraints made simple, eCCC technical report, 2004.