Clear as mud: understanding fine sediment dynamics in the Wadden Sea - action plan / Luca van Duren ... [et al.]Preparing for climate change: a research framework on the sediment-sharing systems of the Dutch, German and Danish Wadden Sea for the development of an adaptive strategy for flood safety / A.P. Oost, Z.B. Wang, A.V. de Groot, L.A. van Duren, L. van der Valk