Zsófia Ruttkay Michael Kipp Anton Nijholt Hannes Högni Vilhjálmsson Intelligent Virtual Agents, 9th International Conference, IVA 2009, Amsterdam, The Netherlands, September 14-16, 2009, Proceedings 5773 2009 http://dx.doi.org/10.1007/978-3-642-04380-2 978-3-642-04379-6 IVA Lecture Notes in Computer Science Springer db/conf/iva/iva2009.html