J. Leitner, F. Perteneder, C. Liu, C. Rendl, und M. Haller. Proceedings of the 31st international conference on Human factors in computing systems, Seite 1789--1798. Paris, France, (Mai 2013)
T. Seifried, C. Rendl, M. Haller, und S. Scott. CHI '12: Proceedings of the 30th international conference on Human factors in computing systems, Seite 2855--2864. New York, NY, USA, ACM, (Mai 2012)