Martin Atzmüller Peter Klügl Joachim Baumeister Frank Puppe Rapid knowledge capture using subgroup discovery with incremental refinement. 31-38 2007 K-CAP http://doi.acm.org/10.1145/1298406.1298414 conf/kcap/2007 db/conf/kcap/kcap2007.html#AtzmullerKBP07