M. Atzmueller, F. Puppe, and H. Buscher. Proc. 10th International Workshop on Intelligent Data Analysis in Medicine and Pharmacology (IDAMAP-2005), page 46--51. Aberdeen, Scotland, (2005)
M. Atzmueller, J. Baumeister, and F. Puppe. Proc. 15th Intl. Conference on Applications of Declarative Programming and Knowledge Management (INAP 2004), page 203--213. Potsdam, Germany, (2004)