Ineson, Jon R., Bjørn Buchardt, Susanne Lassen, Jan A. Rasmussen, Poul Schiøler, Niels H. Schovsbo, Emma Sheldon, and Finn Surlyk. 2006. “Stratigraphy and Palaeoceanography of Upper Maastrichtian Chalks, Southern Danish Central Graben”. GEUS Bulletin 10 (November). Copenhagen, Denmark:9-12. https://doi.org/10.34194/geusb.v10.4870.