T. Low, C. Hentschel, S. Stober, H. Sack, and A. Nürnberger. Proceedings of the 8th Nordic Conference on Human-Computer Interaction: Fun, Fast, Foundational, page 1043--1046. New York, NY, USA, ACM, (2014)
H. Sack. Proceedings of the 24th International Conference on World Wide Web Companion, page 719--720. Republic and Canton of Geneva, Switzerland, International World Wide Web Conferences Steering Committee, (2015)
C. Hentschel, and H. Sack. 21st Int. Conf. on MultiMedia Modelling (MMM 2015), volume 8935 of Lecture Notes in Computer Science, page 95--104. Springer, (2015)