On instance-completeness for database query languages involving object creation

Tables as a paradigm for querying and restructuring (extended abstract)

PODS '96 Proceedings of the fifteenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems

On the completeness of object-creating database transformation languages

Journal of the ACM (JACM)

On the Difference between Navigating Semi-structured Data and Querying It

DBPL '99 Revised Papers from the 7th International Workshop on Database Programming Languages: Research Issues in Structured and Semistructured Database Programming

Powerdomain of Paths for Representing Object Structures

Fundamenta Informaticae