JØRGENSEN, J. B. Construction of Occurrence Graphs with Permutation Symmetries Aided by the Backtrack Method. DAIMI Report Series, [S. l.], v. 26, n. 516, 2002. DOI: 10.7146/dpb.v26i516.7045. Disponível em: https://tidsskrift.dk/daimipb/article/view/7045. Acesso em: 4 may. 2024.