1. P. Apers, C. D. Berg, J. Flokstra, P. Grefen, M. Kersten, and A. Wilschut. PRISMA/DB: A Parallel, Main Memory Relational DBMS. IEEE Transactions on Knowledge and Data Engineering, 4 (6): 541–554, December 1992.
2. H.-J. Appelrath, H. Behrends, H. Jasper, and V. Kamp. Active Database Technology Supports Cancer Cluster Clustering. In W. Litwin and T. Risch, editors, Applications of Databases, First International Conference, ADB-94, Vadstena, Sweden, June 21–23, 1994, Proceedings. Lecture Notes in Computer Science, Vol.819, pages 351–364. Springer, 1994.
3. S. Ceri and J. Widom. Deriving Production Rules for Constraint Maintainance. In D. McLeod, R. Sacks-Davis, and H.-J. Schek, editors, 16th International Conference on Very Large Data Bases, August 13–16, 1990, Brisbane, Queensland, Australia, Proceedings, pages 566–577. Morgan Kaufmann, 1990.
4. A. Gupta and J. Widom. Local Verification of Global Integrity Constraints in Distributed Databases. In P. Buneman and S. Jajodia, editors, Proceedings of the 1993 ACM SIGMOD International Conference on Management of Data, Washington, D.C., May 26–28, 1993, pages 49–58. ACM Press, 1993.
5. U. Herzog and R. Schaarschmidt. Parallel Execution of Integrity Constraint Checks. In CIKM ‘85, Proceedings of the 1995 International Conference on Information and Knowledge Management, November 28 - December 2, 1995, Baltimore, Maryland, USA, pages 82–89. ACM, 1995.