1. Data on the Web;Abiteboul,2000
2. A Formal Model for an Expressive Fragment of XSLT;Bex,2000
3. Holistic Twig Joins: Optimal XML Pattern Matching;Bruno,2002
4. Symmetry in XPath;Bry;Technical Report PMS-FB-2001-16, LMU München,2001
5. Containment and Integrity Constraints for XPath;Deutsch,2001