Nielsen, Ole B., Marit-Solveig Seidenkrantz, Niels Abrahamsen, Birthe J. Schmidt, Eva B. Koppelhus, Helle Ravn-Sørensen, Uffe Korsbech, and K. Gynther Nielsen. “The Lower–Middle Jurassic of the Anholt Borehole: Implications for the Geological Evolution of the Eastern Margin of the Danish Basin”. GEUS Bulletin 1 (October 28, 2003): 585–609. Accessed June 27, 2022. https://geusbulletin.org/index.php/geusb/article/view/4685.