NIELSEN, M.; ROZENBERG, G.; THIAGARAJAN, P. S. Transition Systems, Event Structures and Unfoldings. DAIMI Report Series, [S. l.], v. 20, n. 353, 1991. DOI: 10.7146/dpb.v20i353.6583. Disponível em: https://tidsskrift.dk/daimipb/article/view/6583. Acesso em: 8 may. 2024.