R. Biswas, M. Koutraki, and H. Sack. Proc. 21st International Conference on Knowledge Engineering and Knowledge Management 2018 (EKAW 2018), 2262, page 29-31. CEUR Workshop Proceedings, (Dezember 2018)
D. Romero, B. Meeder, and J. Kleinberg. Proceedings of the 20th international conference on World wide web, page 695--704. New York, NY, USA, ACM, (2011)