BRABRAND, C.; GIEGERICH, R.; MØLLER, A. Analyzing Ambiguity of Context-Free Grammars. BRICS Report Series, [S. l.], v. 13, n. 9, 2006. DOI: 10.7146/brics.v13i9.21965. Disponível em: https://tidsskrift.dk/brics/article/view/21965. Acesso em: 2 may. 2024.