MÜLLER, S. Assessment of school closures in urban areas by simple accessibility measures. ERDKUNDE, [S. l.], v. 65, n. 4, p. 401–414, 2011. DOI: 10.3112/erdkunde.2011.04.06. Disponível em: https://journals-test.ulb.uni-bonn.de/index.php/erdkunde/article/view/2695. Acesso em: 3 apr. 2025.