LINDGREEN, H.; JAKOBSEN, F. Nano-quartz in North Sea Danian chalk. GEUS Bulletin, Copenhagen, Denmark, v. 26, p. 9–12, 2012. DOI: 10.34194/geusb.v26.4739. Disponível em: https://geusbulletin.org/index.php/geusb/article/view/4739. Acesso em: 3 may. 2024.