Poulsen, Chr. “Further Contributions to the Knowledge of the Palaeozoic of Slagelse No. 1, Western Sealand”. Danmarks Geologiske Undersøgelse II. Række 101 (June 17, 1974): 1–42. Accessed May 4, 2024. https://geusjournals.org/index.php/raekke2/article/view/6892.