JANSSEN, Holger; HILLER, Anne. World Nature Heritage Wadden Sea: Trilateral Geodata for Marine Spatial Planning. Raumforschung und Raumordnung | Spatial Research and Planning, DE, v. 72, n. 3, p. 239–253, 2014. DOI: 10.1007/s13147-014-0270-2. Disponível em: https://rur.oekom.de/index.php/rur/article/view/630. Acesso em: 9 nov. 2026.