Catherine Pelachaud Jean-Claude Martin Elisabeth André Gérard Chollet Kostas Karpouzis Danielle Pelé Intelligent Virtual Agents, 7th International Conference, IVA 2007, Paris, France, September 17-19, 2007, Proceedings IVA Lecture Notes in Computer Science 4722 Springer 2007 978-3-540-74996-7 db/conf/iva/iva2007.html