Atzmueller, Martin and Puppe, Frank. "A Knowledge-Intensive Approach for Semi-Automatic Causal Subgroup Discovery." Paper presented at the meeting of the Proc. Workshop on Prior Conceptual Knowledge in Machine Learning and Knowledge Discovery (PriCKL'07), at the 18th European Conference on Machine Learning (ECML'07), 11th European Conference on Principles and Practice of Knowledge Discovery in Databases (PKDD'07), Warsaw, Poland, 2007.