HEILMANN-CLAUSEN, C.; BIRKELUND, T. Lower Cretaceous dinoflagellate biostratigraphy in the Danish Central Trough. Danmarks Geologiske Undersøgelse Serie A, Copenhagen, Denmark, v. 17, p. 1–89, 1987. DOI: 10.34194/seriea.v17.7036. Disponível em: https://geusjournals.org/index.php/seriea/article/view/7036. Acesso em: 8 may. 2024.