NIELSEN, M.; CLAUSEN, C. Bisimulations, Games and Logic. DAIMI Report Series, [S. l.], v. 23, n. 467, 1994. DOI: 10.7146/dpb.v23i467.6940. Disponível em: https://tidsskrift.dk/daimipb/article/view/6940. Acesso em: 9 may. 2024.