“Foraminiferal Stratigraphy of Quaternary Deposits in Boring No. 51.12 Anholt, Kattegat”. Danmarks Geologiske Undersøgelse Serie B 15 (September 1, 1990): 1–40. Accessed October 21, 2025. https://geusjournals.org/index.php/serieb/article/view/7082.