ZHANG, Z.-L. A Note on the Jacobian Conjecture. DAIMI Report Series, [S. l.], v. 19, n. 303, 1990. DOI: 10.7146/dpb.v19i303.6696. Disponível em: https://tidsskrift.dk/daimipb/article/view/6696. Acesso em: 4 may. 2024.