CHRISTIANSEN, F. G. Review of Survey activities 2010. GEUS Bulletin, Copenhagen, Denmark, v. 23, p. 1–8, 2011. DOI: 10.34194/geusb.v23.4775. Disponível em: https://geusbulletin.org/index.php/geusb/article/view/4775. Acesso em: 28 sep. 2022.