1. Choco, open-source software for constraint satisfaction problems.
http://www.emn.fr/z-info/choco-solver
2. The TPC benchmark H (TPC-H).
http://www.tpc.org/tpch/spec/tpch2.14.3.pdf
3. Bauer, A., Lehner, W.: On solving the view selection problem in distributed data warehouse architectures. In: SSDBM, pp. 43-51, Cambridge (2003)
4. Apt, K.: Principles of Constraint Programming. Cambridge University Press, New York (2003)
5. Baril, X., Bellahsene, Z.: Selection of materialized views: a cost-based approach. In: CAiSE, pp. 665–680, Klagenfurt (2003)