1. Toward the conversational user interface;McTear,2004
2. Quality of telephone-based spoken dialogue systems;Möller,2004
3. Spoken, Multilingual and Multimodal Dialogue Systems. Development and Assessment;López-Cózar,2005
4. Natural Language Understanding;Allen,1995
5. Learning user simulations for information state update dialogue systems;Georgila;Proc. Interspeech,2005