Stemmerik, Lars, Finn Surlyk, Kurt Klitten, Susanne L Rasmussen, and Niels Schovsbo. 2006. “Shallow Core Drilling of the Upper Cretaceous Chalk at Stevns Klint, Denmark”. GEUS Bulletin 10 (November). Copenhagen, Denmark:13-16. https://doi.org/10.34194/geusb.v10.4880.