ELGAARD, L. The Symmetry Method for Coloured Petri Nets. DAIMI Report Series, [S. l.], v. 31, n. 564, 2002. DOI: 10.7146/dpb.v31i564.7121. Disponível em: https://tidsskrift.dk/daimipb/article/view/7121. Acesso em: 28 mar. 2024.