Ineson, J. R. .; Buchardt, B. .; Lassen, S. .; Rasmussen, J. A. .; Schiøler, P. .; Schovsbo, N. H. .; Sheldon, E. .; Surlyk, F. . Stratigraphy and Palaeoceanography of Upper Maastrichtian Chalks, Southern Danish Central Graben. GEUS Bulletin 2006, 10, 9-12.