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- Journal on Data Semantics VI (2006)
- Proceedings of the Collaborative Web Tagging Workshop at the WWW 2006, Edinburgh, Scotland, (May 2006)
- WWW '06: Proceedings of the 15th international conference on World Wide Web, page 417--426. New York, NY, USA, ACM Press, (2006)
- HYPERTEXT '06: Proceedings of the seventeenth conference on Hypertext and hypermedia, page 111--114. New York, NY, USA, ACM Press, (2006)
- Natural Language Processing and Information Systems, volume 3999/2006 of Lecture Notes in Computer Science, page 58-69. Berlin / Heidelberg, Springer, (July 2006)
- Conceptual Modeling - ER 2006, page 325--338. (2006)
- Data Science and Classification. Proceedings of the 10th IFCS Conf., page 261--270. Heidelberg, Springer, (July 2006)
- Proceedings of the 22nd Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR'99, page 206--213. (1999)
- The Semantic Web - ISWC 2005, Proceedings of the 4th International Semantic Web Conference, ISWC 2005, Galway, Ireland, November 6-10, volume 3729 of Lecture Notes in Computer Science, page 522-536. Springer, (2005)
- Proceedings of the Workshop on Social Network Analysis, International Semantic Web Conference ISWC, (November 2005)
- Proceedings of the Collaborative Web Tagging Workshop at the WWW 2006, Edinburgh, Scotland, (May 2006)
- School of Information and Library Science, (November 2005)
- Computer Science Department, Standford University, (April 2006)
- Proceedings of the 1st Semantic Authoring and Annotation Workshop SAAW'06, (2006)
- Journal of Information Sciences 32(2):198--208 (April 2006)
- Lecture Notes in Computer Science: On the Move to Meaningful Internet Systems 2006: OTM 2006 Workshops, Springer, (2006)
- Proceedings of ISWC-2006 International Semantic Web Conference, Athens, GA, USA, Springer, LNCS, (November 2006)
- Lecture Notes in Computer Science: On the Move to Meaningful Internet Systems 2006: OTM 2006 Workshops, Springer, (2006)
- Proceedings of the National Academy of Sciences United States of America (2007)
- The European Physical Journal C - Particles and Fields (August 2006)


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