SRBA, J. On the Power of Labels in Transition Systems. BRICS Report Series, [S. l.], v. 8, n. 19, 2001. DOI: 10.7146/brics.v8i19.21680. Disponível em: https://tidsskrift.dk/brics/article/view/21680. Acesso em: 19 apr. 2024.