J. Kreutel. Proceedings of the 8th SIGdial Workshop on Discourse and Dialogue, стр. 235–238. Association for Computational Linguistics (ACL), (сентября 2007)
A. Neto, и R. de Mattos Fortes. Proceedings of the 28th ACM International Conference on Design of Communication, стр. 151--158. New York, NY, USA, ACM, (2010)
R. Nesselrath, и D. Porta. Proceedings of the 7th IJCAI Workshop on Knowledge and Reasoning in Practical Dialogue Systems (KRPDS-11), стр. 37-47. (июля 2011)