( 2 peer reviewed ) opsplitsen filter
 Vollmer, M.; Guldberg, M.; Maluck, M.; Marrewijk, D.; Schlicksbier, G. (2001). Landscape and cultural heritage in the Wadden Sea region. Wadden Sea Ecosystem, 12. Common Wadden Sea Secretariat: Wilhelmshaven. 336 pp., meer- Wadden Sea Ecosystem. Common Wadden Sea Secretariat: Wilhelmshaven. ISSN 0946-896X, meer
- (2000). TMAP manual: the Trilateral Monitoring and Assessment Program (TMAP): working document. Common Wadden Sea Secretariat: Wilhemshaven. [diff. paging] pp., meer
- de Jong, F.; Bakker, J.F.; Dankers, N.M.J.A.; Dahl, K.; Jäppelt, W.; Madsen, P.B.; Kossmagk-Stephan, K.-J. (Ed.) (1993). Subregion 10: The Wadden Sea. Quality Status Report of the North Sea 1993. Common Wadden Sea Secretariat: Wilhelmshaven. 174 pp., meer
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