MÜLLER, Bernhard. Regional development in conditions of shrinkage: The challenge for spatial planning in Germany. Raumforschung und Raumordnung | Spatial Research and Planning, DE, v. 61, n. 1-2, p. 28–42, 2003. DOI: 10.1007/BF03183073. Disponível em: https://rur.oekom.de/index.php/rur/article/view/1628. Acesso em: 15 aug. 2026.