- AAAI, The Future of Recommender Systems: Research and Applications edition, (to appear 2011)
- ÖGAI-Journal 24(4):1-7 (2005)
- Proceedings of the 2009 IEEE Conference on Commerce and Enterprise Computing, page 49--56. Washington, DC, USA, IEEE Computer Society, (2009)
- Proceedings of the 23rd International Conference on Industrial Engineering and other Applications of Applied Intelligent Systems, page 631--640. Berlin, Heidelberg, Springer-Verlag, (2010)
- Kunstliche Intelligenz, Special Issue on Web Mining, 3, page 41--43. Bremen, Germany, Bottcher IT Verlag, (2007)
- Proceedings of the 2nd ACM Conference on Electronic Commerce, page 158--167. New York, NY, USA, ACM, (2000)
- IEEE Intelligent Systems (2007)
- Constraints (October 2010)
- Knowledge Engineering Review (September 2005)
- Proceedings of the 2nd International Workshop on Recommendation Systems for Software Engineering, page 11--15. New York, NY, USA, ACM, (2010)
- Cambridge University Press, (2011)
- The Adaptive Web, volume 4321 of Lecture Notes in Computer Science, Springer, Berlin / Heidelberg, (2007)
- Lecture Notes in Computer Science (2005)
- The adaptive web, Springer-Verlag, Berlin, Heidelberg, (2007)
- Fifth International Conference on Computer and Information Science, page 27--28. (2002)
- Communications of the ACM (December 1992)
- International Journal on Artificial Intelligence Tools 20(2):297-312 (2011)
- ACM Transactions on Information Systems TOIS (January 2004)
- Journal of Artificial Intelligence Research 21(1):393--428 (March 2004)
- Case-Based Reasoning Research and Development, 2689, Springer, Berlin / Heidelberg, (2003)


user