user- page 272-295. (2007)
- International Workshop on AI for Human Computing AI4HC in conjunction with IJCAI, (2007)
- Proceedings of the 30th Annual German Conference on Artificial Intelligence KI 2007, 4667, (2007)
- Proceedings of the Workshop: NATO Advanced Study Institute on Mining Massive Data Sets for Security, (2007)
- Proceedings of the 29th Annual German Conference on Artificial Intelligence KI 2006, page 37-40. KI 2006 Demo Presentations, (June 2006)
- Journal of Cases on Information Technology JCIT 11(4):47-73 (2009)
- chapter Pillars of Ontology Treatment in the Medical Domain, Information Science Reference, (2010)
- GI Jahrestagung 1, page 259-263. (2004)
- KI, page 448-451. (2007)
- Springer, (2000)
- IEEE Transactions on Pattern Analysis and Machine Intelligence 13(8):834--841 (1991)
- IUI '05: Proceedings of the 10th international conference on Intelligent user interfaces, page 114--121. New York, NY, USA, ACM Press, (2005)
- IUI '06: Proceedings of the 11th international conference on Intelligent user interfaces, page 116--123. New York, NY, USA, ACM Press, (2006)
- SIGIR '03: Proceedings of the 26th annual international ACM SIGIR conference on Research and development in informaion retrieval, page 26--32. New York, NY, USA, ACM, (2003)
- IPO, Center for Research on User-System Interaction, Eindhoven, the Netherlands, (1998)
- Academic Press Inc.,U.S., (1985)
- Philosophical Transactions of the Royal Society Series A 358(1769):1389--1402 (2000)
- 14, page 1--37. New York, NY, USA, Springer-Verlag New York, Inc., (2007)
- Morgan Kaufman, San Mateo, CA, (2000)
- Proceedings of ICSLP, Jeju, South Korea, (2004)
