ACETO, L.; INGÓLFSDÓTTIR, A. Characteristic Formulae: From Automata to Logic. BRICS Report Series, [S. l.], v. 14, n. 2, 2007. DOI: 10.7146/brics.v14i2.21925. Disponível em: https://tidsskrift.dk/brics/article/view/21925. Acesso em: 8 nov. 2024.