JONES, N. D. Circularity Testing of Attribute Grammars Requires Exponential Time: A Simpler Proof. DAIMI Report Series, [S. l.], v. 9, n. 107, 1980. DOI: 10.7146/dpb.v9i107.6522. Disponível em: https://tidsskrift.dk/daimipb/article/view/6522. Acesso em: 9 may. 2024.