P. Kluegl, M. Toepfer, F. Lemmerich, A. Hotho, and F. Puppe. Mathematical Methodologies in Pattern Recognition and Machine Learning Springer Proceedings in Mathematics & Statistics, (2013)
F. Mitzlaff, M. Atzmueller, G. Stumme, and A. Hotho. Complex Networks IV, volume 476 of Studies in Computational Intelligence, Springer Verlag, Heidelberg, Germany, (2013)