MCDONALD, David; LEUNG, Alice; FERGUSON, William; HUSSAIN, Talib. An Abstraction Framework for Cooperation Among Agents and People in a Virtual World. Proceedings of the AAAI Conference on Artificial Intelligence and Interactive Digital Entertainment, [S. l.], v. 2, n. 1, p. 54–59, 2006. DOI: 10.1609/aiide.v2i1.18746. Disponível em: https://ojs.aaai.org/index.php/AIIDE/article/view/18746. Acesso em: 31 may. 2026.