참고문헌
- Semantic Web Challenge, IEEE Intelligent Systems, May/June, 2004
- J. Davis et al, Towards the Semantic Web: Ontology-driven Knowledge Management, John Wiley & Sons, LTD, 2002
- J. Hjelm, Creating the Semantic Web with RDF, John Wiley & Sons, Inc., 2001
- W3C Recommendation, OWL Web Ontology Language, Feb., 2004
- http://www.w3.org/2001/sw/