WEILAND, Ulrike. Planning cycle for a sustainable development of urban regions. Raumforschung und Raumordnung | Spatial Research and Planning, DE, v. 59, n. 5-6, p. 392–401, 2001. DOI: 10.1007/BF03183040. Disponível em: https://rur.oekom.de/index.php/rur/article/view/1507.. Acesso em: 5 may. 2024.