V. Petukhova, and H. Bunt. Proceedings of the Eight International Conference on Language Resources and Evaluation (LREC'12), Istanbul, Turkey, European Language Resources Association (ELRA), (May 2012)
R. Neßelrath, and M. Feld. Adjunct Proceedings of the 5th International Conference on Automotive User Interfaces and Interactive Vehicular Applications, Eindhoven, page 49-52. (October 2013)
R. Neßelrath. Proceedings of the 9th International Conference on Intelligent Environments (IE). International Conference on Intelligent Environments (IE-13), July 18-19, Athen, Greece, IEEE, (2013)