Genaro Rebolledo-Mendez David J. H. Burden Sara de Freitas A Model of Motivation for Virtual-Worlds Avatars. 535-536 2008 IVA http://dx.doi.org/10.1007/978-3-540-85483-8_76 conf/iva/2008 db/conf/iva/iva2008.html#Rebolledo-MendezBF08