Miguel Lozano Rafael Lucia Fernando Barber Francisco Grimaldo António Lucas Soares Alicia Fornés An Efficient Synthetic Vision System for 3D Multi-character Systems. 356-357 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2792&spage=356 2003 conf/iva/2003 IVA db/conf/iva/iva2003.html#LozanoLBGSF03