Schack Pedersen, Stig A, and Ingelise Møller. “Prediction and Risk Evaluation of Chalk Cliff Collapse: The PROTECT Project”. GEUS Bulletin 4 (July 20, 2004): 89–92. Accessed February 8, 2026. https://geusbulletin.org/index.php/geusb/article/view/4793.