JENSEN, K. A method to compare the descriptive power of different types of Petri nets. DAIMI Report Series, [S. l.], v. 9, n. 108, 1981. DOI: 10.7146/dpb.v9i108.6523. Disponível em: https://tidsskrift.dk/daimipb/article/view/6523. Acesso em: 4 may. 2024.