Michelsen, Olaf, Lars H Nielsen, Peter N Johannessen, Jan Andsbjerg, and Finn Surlyk. “Jurassic Lithostratigraphy and Stratigraphic Development Onshore and Offshore Denmark”. GEUS Bulletin 1 (October 28, 2003): 145–216. Accessed December 4, 2025. https://geusbulletin.org/index.php/geusb/article/view/4651.