Media type: E-Article Title: Chapter 18 The Wadden Sea: A Yardstick for a Clean North Sea Contributor: van der Zwiep, Karel imprint: Brill, 1990 Published in: International Journal of Estuarine and Coastal Law Language: Not determined DOI: 10.1163/157180890x00678 ISSN: 0268-0106; 1875-2993 Keywords: General Medicine Origination: Footnote: