KLAPHAKE, Axel; MEYERHOFF, Jürgen. The economic value of open space in urban areas: An application of the contingent valuation to an urban park in Berlin. Raumforschung und Raumordnung | Spatial Research and Planning, DE, v. 61, n. 1-2, p. 107–117, 2003. DOI: 10.1007/BF03183079. Disponível em: https://rur.oekom.de/index.php/rur/article/view/1644. Acesso em: 30 oct. 2026.