R. W. Faas, & S. Wartel. (1977). Mud is transported to the Dutch delta area from the Rhine, Waal, Maas and Scheldt rivers (resp. 0,6; 2,5; 0,7 and 0,7 million tons/year). Above, in the Rotterdam Waterway about 3,5 million tons of mud per year are brought in from the sea. The mud of the u. Netherlands Journal of Geosciences, 211-218. Retrieved from https://njgjournal.nl/index.php/njg/article/view/14318