1. Lavrač, N., Kavšek, B., Flach, P., Todorovski, L.: Subgroup Discovery with CN2-SD. Journal of Machine Learning Research 5, 153–188 (2004)
2. Klösgen, W.: Explora: A multipattern and multistrategy discovery assistant. In: Fayyad, U.M., Piatetsky-Shapiro, G., Smyth, P., Uthurusamy, R. (eds.) Advances in Knowledge Discovery and Data Mining, pp. 249–271. MIT Press, Cambridge (2004)
3. Klösgen, W.: Subgroup discovery. In: Klösgen, W., Zytkow, J.M. (eds.) Handbook of Data Mining and Knowledge Discovery, pp. 354–361. Oxford University Press, Oxford (2002)
4. Fürnkranz, J., Flach, P.: ROC ’n’ rule learning: Towards a better understanding of covering algorithms. Machine Learning 58, 39–77 (2005)
5. Clark, P., Niblett, T.: The CN2 Induction Algorithm. Machine Learning 3, 261–283 (1989)