S. Döweling, and A. Nolte. Workshop-Proceedings der Tagung Mensch & Computer 2011. überMEDIEN|ÜBERmorgen, page 63-68. Chemnitz, Universitätsverlag Chemnitz, (2011)
J. Löwgren. (2008)This is an electronic document. Date of publication: June 10, 2008. Date retrieved: October 3, 2009. Date last modified: September 4, 2009.