Sheldon, E., Morigi, C., & Møller, S. D. (2014). Calcareous nannofossil and foraminifer biostratigraphy of the Campanian–Maastrichtian chalk of the Femern Bælt (Denmark–Germany). GEUS Bulletin, 31, 31–34. https://doi.org/10.34194/geusb.v31.4647