J. Jankowski, A. Westerski, S. Kruk, T. Nagle, and J. Dobrzanski. Proceedings of the 2008 IEEE International Conference on Semantic Computing, page 410--417. Washington, DC, USA, IEEE Computer Society, (2008)
T. Stajner, I. Novalija, and D. Mladenic. Proceedings of the Conference on Data Mining and Data Warehouses (SiKDD 2012) co-located with the 15th International Multiconference on Information Society, (2012)
A. Shakya, V. Wuwongse, H. Takeda, and I. Ohmukai. Proceedings of the 2nd International Conference on Software, Knowledge, Information Management and Applications (SKIMA 2008), page 197-202. Kathmandu, Nepal, (March 2008)ISBN: 9781851432516.
M. Roussou, E. Kavalieratou, and M. Doulgeridis. IDC '07: Proceedings of the 6th international conference on Interaction design and children, page 77--80. New York, NY, USA, ACM, (2007)
A. Faatz, M. Goertz, E. Godehardt, and R. Lokaiczyk. Proceedings of the 15th International Conference on Conceptual Structures (ICCS 2007), volume 4604 of Lecture Notes in Artificial Intelligence, page 296-309. Berlin, Heidelberg, Springer-Verlag, (July 2007)
S. Braun, and A. Schmidt. Proceedings of I-KNOW 2006, Special Track on Integrating Working and Learning, page 429-436. Berlin Heidelberg, Germany, Springer-Verlag, (6-8 September 2006)