HESS, Paul. Comparing metropolitan regions P. Hess. Urban Morphology, [S. l.], v. 11, n. 2, p. 144–146, 2007. DOI: 10.51347/jum.v11i2.4193. Disponível em: https://journal.urbanform.org/index.php/jum/article/view/4193. Acesso em: 26 apr. 2026.