Andrea Corradini Manish Mehta Niels Ole Bernsen Marcela Charfuelan Animating an interactive conversational character for an educational game system. 183-190 2005 conf/iui/2005 IUI http://doi.acm.org/10.1145/1040830.1040872 db/conf/iui/iui2005.html#CorradiniMBC05