- Bridging the Gap between Semantic Web and Web 2.0 SemNet 2007, page 57--70. Innsbruck, (2007)
- Proceedings of IEEE Workshop on Knowledge Acquisition from Distributed, Autonomous, Semantically Heterogeneous Data and Knowledge Sources, (2005)
- SOFSEM 2006: Theory and Practice of Computer Science (2006)
- IJCAI'09: Proceedings of the 21st international jont conference on Artifical intelligence, page 2089--2094. San Francisco, CA, USA, Morgan Kaufmann Publishers Inc., (2009)
- Journal of Universal Knowledge Management volume 0(1):50-58 (2005)
- International Journal of Knowledge and Learning IJKL 3(4/5):515-528 (2007)ISSN Online: 1741-1017 ISSN Print: 1741-1009 .
- Digital Information Management, 2007. ICDIM '07. 2nd International Conference on, 2, page 615-620. (October 2007)


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