VEJBÆK, O. V.; BIDSTRUP, T. .; BRITZE, P. .; ERLSTRÖM, M. .; RASMUSSEN, E. S. .; SIVHED, U. . Chalk depth structure maps, Central to Eastern North Sea, Denmark. GEUS Bulletin, Copenhagen, Denmark, v. 13, p. 9–12, 2007. DOI: 10.34194/geusb.v13.4962. Disponível em: https://geusbulletin.org/index.php/geusb/article/view/4962. Acesso em: 25 may. 2022.