P. Singer, D. Helic, A. Hotho, und M. Strohmaier. International Conference on World Wide Web, Seite 1003--1013. Republic and Canton of Geneva, Switzerland, International World Wide Web Conferences Steering Committee, (2015)
M. Atzmueller, und F. Lemmerich. European Conference on Machine Learning and Knowledge Discovery in Databases (ECML/PKDD), Seite 842--845. Heidelberg, Germany, Springer, (2012)