Constraints for Semi-structured Data and XML P. Buneman, W. Fan, J. Simeon, S. Weinstein Available in: PDF Published in March 2001 (Vol.30 No.1)
Theory of Answering Queries Using Views A. Halevy Available in: PDF Published in December 2000 (Vol.29 No.4)
Constraint Databases: A Tutorial Introduction J. Van den Bussche Available in: PDF Published in September 2000 (Vol.29 No.3)
Incremental Maintenance of Recursive Views Using Relational Calculus/SQL G. Dong, J. Su Available in: PDF Published in March 2000 (Vol.29 No.1)
Database Principles Column – Introduction L. Libkin Available in: PDF Published in December 1999 (Vol.28 No.4)
