HOELSTAD, T. Palynology of the Middle Jurassic Lower Graben Sand Formation of the U-1 well, Danish Central Trough. Danmarks Geologiske Undersøgelse Serie A, Copenhagen, Denmark, v. 14, p. 1–25, 1986. DOI: 10.34194/seriea.v14.7033. Disponível em: https://geusjournals.org/index.php/seriea/article/view/7033. Acesso em: 15 may. 2024.