HERNGREEN, G.; SMIT, R.; WONG, T. E. Upper Jurassic-Cretaceous stratigraphy of the Vlieland Basin, and adjacent areas, the Netherlands. Danmarks Geologiske Undersøgelse Serie B, [S. l.], v. 16, p. 17–19, 1991. DOI: 10.34194/serieb.v16.7086. Disponível em: https://geusjournals.org/index.php/serieb/article/view/7086. Acesso em: 29 apr. 2024.