S. Keizer, and H. Bunt. Proceedings of the 7th SIGdial Workshop on Discourse and Dialogue, page 37--45. Stroudsburg, PA, USA, Association for Computational Linguistics, (2006)
J. Alexandersson, and T. Becker. Proceedings of the Fifth International Workshop on Computational Semantics (IWCS-5), page 1-14. Tilburg, The Netherlands, (2003)
S. Gandhe, N. Whitman, D. Traum, and R. Artstein. Proceedings of the 6th IJCAI Workshop on Knowledge and Reasoning in Practical Dialogue Systems, Association for the Advancement of Artificial Intelligence (AAAI), (2009)
H. Bunt. Proceedings of the Ninth International Conference on Computational Semantics, page 1--13. Stroudsburg, PA, USA, Association for Computational Linguistics, (2011)
T. Heinroth, D. Denich, and W. Minker. Universal Access in Human-Computer Interaction. Applications and Services, volume 6768 of Lecture Notes in Computer Science, chapter 5, Springer-Verlag, Berlin/Heidelberg, (2011)