1. Theories of personality;Ryckman,2004
2. Mateas M, Stern, A. Façade: an experiment in building a fully-realized interactive drama: game developers conference, Game design track, March 2003.
3. Iurgel I, Marcos A. Engaging Virtual Agents: Interacção 2006: Actas da 2a. Conferencia Nacional em Interacção Pessoa-Máquina. Lisboa: Grupo Portugues de Computacao Grafica (CPCG), 2006. p. 123–31.
4. The cognitive structure of emotions;Ortony,1988
5. Gratch J, Marsella S. Lessons from emotion psychology for the design of lifelike characters. Applied Artificial Intelligence 2005;19(3–4):p. 215–33.