P. Klügl, M. Toepfer, F. Lemmerich, A. Hotho, и F. Puppe. Proceedings of 1st International Conference on Pattern Recognition Applications and Methods ICPRAM, стр. 240-248. Vilamoura, Algarve, Portugal, SciTePress, (2012)
T. Dietterich, A. Ashenfelter, и Y. Bulatov. ICML '04: Proceedings of the twenty-first international conference on Machine learning, стр. 28. New York, NY, USA, ACM Press, (2004)