1. Updates, A New Frontier;Abiteboul,1988
2. Update Semantics for Incomplete Databases;Abiteboul,1985
3. A Transaction Language Complete for Database Update and Specification;Abiteboul,1987
4. Datalog Extensions for Database Queries and Updates;Abiteboul;JCSS,1991
5. Towards a Theory of Declarative Knowledge;Apt,1988