Schiøler, Poul, Jan Andsbjerg, Ole R. Clausen, Gregers Dam, Karen Dybkjær, Lars Hamberg, Claus Heilmann-Clausen, et al. 2007. “Lithostratigraphy of the Palaeogene – Lower Neogene Succession of the Danish North Sea”. GEUS Bulletin 12 (June): 1-77. https://doi.org/10.34194/geusb.v12.5249.