- W3C, (2004)
- Proceedings of the eleventh international conference on World Wide Web, page 592-603. (2002)
- W3C Recommendation, W3C, (Feb 10, 2004)
- W3C, (1998)
- The Semantic Web - ISWC 2005, 3729, page 668-684. Heidelberg, Springer Verlag, (2005)
- FOAF project, (May 2007)
- W3C, (Mar 25, 2005)
- Markup Languages: Theory and Practice 3(3):313--331 (December 2001)
- J. Web Sem. 6(1):54-60 (2008)
- W3C Working Draft, W3C, (Oct 26, 2007)
- Proceedings of the 5th European Semantic Web Conference, Berlin, Heidelberg, Springer Verlag, (June 2008)
- W3C Recommendation, W3C, (September 2007)
- Proc. Semantic Web Working Symposium, page 381-402. Stanford University, California, (2001)
- (Aug 5, 2004)
- W3C Working Group Note 6 April 2007, (2007)
- SWDB, page 293-307. (2003)
- Deliverable, I4-Dx2. REWERSE, (2008)
- Reasoning Web, First International Summer School 2005, volume 3564 of LNCS, Springer-Verlag, (2005)
- (2003)


user