S. Bloehdorn, P. Haase, M. Hefke, Y. Sure, and C. Tempich. Proceedings of the 5th International Conference on Knowledge Management (I-KNOW 05), Graz, Austria, June 29 - July 1, 2005, page 278--285. Springer Publishing, (July 2005)
Y. Sure, S. Bloehdorn, P. Haase, J. Hartmann, and D. Oberle. Proceedings of the 12th Portuguese Conference on Artificial Intelligence - Progress in Artificial Intelligence (EPIA 2005), volume 3803 of LNCS, page 218 - 231. Covilha, Portugal, Springer, (December 2005)
S. Bloehdorn, P. Haase, M. Hefke, Y. Sure, and C. Tempich. Proceedings of the 5th International Conference on Knowledge Management (I-KNOW 05), Graz, Austria, June 29 - July 1, 2005, page 278--285. Springer Publishing, (July 2005)