1. Querying and updating the file;Abiteboul,1993
2. Correspondence and translation for heterogeneous data;Abiteboul,1997
3. Type-checking XML views of relational databases;Alon,2001
4. Schemas for integration and translation of structured and semi-structured data;Beeri,1999
5. Extensible Markup Language (XML) 1.0;Bray,1998