M. Aehnelt, H. Diener, and A. Müller. Tagungsband 10.~Fachtagung Digital Engineering zum Planen, Testen und Betreiben technischer Systeme, 16.~IFF-Wissenschaftstage, page 139--146. Magdeburg, Fraunhofer-Institut für Fabrikbetrieb und -Automatisierung (IFF), (June 2013)
M. Anisetti, V. Bellandi, P. Ceravolo, and E. Damiani. Intelligent Interactive Multimedia Systems and Services, volume 6 of Smart Innovation, Systems and Technologies, Springer, Berlin, (2010)
M. Araki, and Y. Funakura. Spoken Dialogue Systems for Ambient Environments: Second International Workshop, IWSDS 2010, Gotemba, Shizuoka, Japan, volume 6392 of Lecture Notes in Artificial Intelligence, Springer, Berlin, (2010)
M. Barz, M. Moniri, M. Weber, and D. Sonntag. Adjunct Proceedings of the 2016 ACM International Joint Conference on Pervasive and Ubiquitous Computing (UbiComp '16), Heidelberg, Germany, page 17--20. New York, ACM, (2016)
A. Batliner, C. Hacker, M. Kaiser, H. Mögele, and E. Nöth. Proceedings of AVSP'07: International Conference on Auditory-Visual Speech Processing, Kasteel Groenendaal, Hilvarenbeek, The Netherlands, (2007)