FRICKE, Carola. Metropolitan Regions as a Changing Policy Concept in a Comparative Perspective. Raumforschung und Raumordnung | Spatial Research and Planning, DE, v. 75, n. 3, p. 291–305, 2017. DOI: 10.1007/s13147-016-0450-3. Disponível em: https://rur.oekom.de/index.php/rur/article/view/457.. Acesso em: 4 may. 2024.