1. Acharya, S., Gibbons, P. B., Poosala, V., & Ramaswamy, S. (1999). Join synopses for approximate query answering. In Proceedings SIGMOD (pp. 275–286) Philadelphia, Pennsylvania, USA.
2. Agrawal, S., Chaudhuri, S., & Narasayya, V. R. (2000). Automated selection of materialized views and indexes in sql database. In Proc. of VLDB (pp. 496–505) Cairo, Egypt.
3. Bello, R. G., Dias, K., Downing, A., Feenan, J. Jr., Norcott, W. D., Sun, H., Witkowski, A., et. al. (1998). Materialized views in oracle. In Proceedings of 24th VLDB (pp. 659–664).
4. Ceri, S., Fraternali, P., Paraboschi, S., & Tanca, L. (1994). Automatic generation of production rules for integrity maintenance. TODS, 19(3), 367–422.
5. Ceri, S., & Widom, J. (1990). Deriving production rules for constraint maintenance. In Proceedings of the 16th VLDB (pp. 577–589) Brisbane, Australia.