Rasmussen, Leif Banke. “The Marine Upper Miocene of South Jutland and Its Molluscan Fauna”. Danmarks Geologiske Undersøgelse II. Række 81 (December 31, 1956): 1–166. Accessed May 16, 2024. https://geusjournals.org/index.php/raekke2/article/view/6871.