H.S.M. Jansen, J. Huizer, J.W.A. Dijkmans, C. Mesdag, and J.E. van Hinte. “The Geometry and Stratigraphic Position of the Maassluis Formation (western Netherlands and Southeastern North Sea)”. Netherlands Journal of Geosciences 83 (June 1, 2004): 93 - 99. Accessed April 1, 2026. https://njgjournal.nl/index.php/njg/article/view/11547.