J. Baumeister, and D. Seipel. FLAIRS'05: Proceedings of the 18th International Florida Artificial Intelligence Research Society Conference, page 215-220. AAAI Press, (2005)
J. Baumeister, and D. Seipel. EKAW'06: Proceedings of the 15th International Conference on Knowledge Engineering and Knowledge Management, page 82-95. (2006)
J. Baumeister, T. Kleemann, and D. Seipel. FLAIRS'07: Proceedings of the 20th International Florida Artificial Intelligence Research Society Conference, page 524-529. AAAI Press, (2007)