Schiøler, P. .; Andsbjerg, J. .; Clausen, O. R. .; Dam, G. .; Dybkjær, K. .; Hamberg, L. .; Heilmann-Clausen, C. .; Johannessen, E. P.; Kristensen, L. E.; Prince, I. .; Rasmussen, J. A. . Lithostratigraphy of the Palaeogene – Lower Neogene Succession of the Danish North Sea. GEUS Bulletin 2007, 12, 1-77.