General map top Pleistocene deposits in The Netherlands and in The Netherlands
Sector of the North Sea, scale 1:1.000.000. Geological Survey of The Netherlands.
Gans, W. de, C. Laban & K.F. Rijsdijk, 1993
Sector of the North Sea, scale 1:1.000.000. Geological Survey of The Netherlands.
Gans, W. de, C. Laban & K.F. Rijsdijk, 1993