Elizabeth Furtado Vasco Furtado Eurico Vasconcelos Filho A Conceptual Framework for the Design and Evaluation of Affective Usability in Educational Geosimulation Systems. 497-510 2007 conf/interact/2007-1 INTERACT (1) http://dx.doi.org/10.1007/978-3-540-74796-3_48 db/conf/interact/interact2007-1.html#FurtadoFF07