Gätje, C.
, Laursen, K., Eekhof, H., Borchardt, T., Essink, K. (Ed.), Dettmann, C. (Ed.), Farke, H. (Ed.), Laursen, K. (Ed.), Lüerssen, G. (Ed.), Marencic, H. (Ed.) & Wiersinga, W. (Ed.) (2005).
Tourism and Recreation. In
Wadden Sea Ecosystem (pp. 9-48). Wilhelmhaven: Common Wadden Sea Secretariat (CWSS).
http://www.waddensea-secretariat.org/QSR/