KRAPPWEIS, Stefan. Ten years of joint planning in Berlin and Brandenburg: Review and prospects for the future. Raumforschung und Raumordnung | Spatial Research and Planning, DE, v. 59, n. 2-3, p. 216–227, 2001. DOI: 10.1007/BF03184356. Disponível em: https://rur.oekom.de/index.php/rur/article/view/1244. Acesso em: 25 sep. 2026.