Solakius, Nikolaos, and Kent Larsson. “Foraminifera and Biostratigraphy of the Arnager Limestone, Bornholm, Denmark”. Danmarks Geologiske Undersøgelse Serie C 5 (October 31, 1985): 1–42. Accessed July 3, 2024. https://geusjournals.org/index.php/seriec/article/view/7099.