1. Updates, a new frontier;Abiteboul,1988
2. Nested Relations and Complex Objects in Database,1989
3. A rule-based language with functions and sets;Abiteboul;ACM Trans. Database Systems,1991
4. Equivalence and optimization of relational transactions;Abiteboul;J. ACM,1988
5. Procedural languages for database queries and updates;Abiteboul;J. Comput. System Sci.,1990