1. Bain SL and Shalloway A (2001) Introduction to XML and its Family of Technologies. Net Objectives.
2. Bates C (2003) XML in Theory and Practice. New York: Wiley.
3. Berners-Lee T (1998) Semantic Web Road Map. Available: http://www.w3.org/DesignIssues/Semantic.html
4. Berners-Lee T (1999) Weaving the Web. San Francisco: Harper.
5. Berners-Lee T (2000) Semantic Web — XML2000. Available: http://www.w3.org/2000/Talks/1206-xml2k-tbl/