QUINTERO, L. E.; RESTREPO, P. Market Access and the Concentration of Economic Activity in a System of Declining Cities. REGION, [S. l.], v. 5, n. 3, p. 97–109, 2018. DOI: 10.18335/region.v5i3.223. Disponível em: https://openjournals.wu.ac.at/ojs/index.php/region/article/view/223. Acesso em: 1 jul. 2022.