R. Neßelrath, и J. Alexandersson. Proceedings of the 6th IJCAI Workshop on Knowledge and Reasoning in Practical Dialogue Systems, Pasadena, CA, USA, стр. 46-51. (2009)
R. Riedel, U. Starker, и R. Weth. Advances in Production Management Systems: Innovative and Knowledge-Based Production Management in a Global-Local World (Part I), том 438 из IFIP Advances in Information and Communication Technology, Springer, Heidelberg, (2014)
A. Tewari, T. Brown, и J. Canny. Intelligent Virtual Agents: 13th International Conference, IVA 2013, Edinburgh, UK, 8108, Springer, Heidelberg, (2013)