user- HMD -- Praxis der Wirtschaftsinformatik (February 2010)
- AI Communications 21(4):231-247 (2008)
- HT '08: Proceedings of the Nineteenth ACM Conference on Hypertext and Hypermedia, page 157--166. New York, NY, USA, ACM, (2008)
- Springer, Heidelberg, (2009)to appear .
- Proc. of the Fourth International Workshop on Adversarial Information Retrieval on the Web, (2008)
- Proceedings of the 3rd Workshop on Ontology Learning and Population OLP3, Patras, Greece, (July 2008)
