TAN, Roger K. C.; CHEOK, Adrian David; TEH, James K. S. Metazoa Ludens: Mixed Reality Environment for Playing Computer Games with Pets. International Journal of Virtual Reality, [S. l.], v. 5, n. 3, p. 53–58, 2006. DOI: 10.20870/IJVR.2006.5.3.2699. Disponível em: https://ijvr.eu/article/view/2699. Acesso em: 27 dec. 2025.