CHRISTIANSEN, F. G. . Review of Survey activities: Colophon, contents, introduction. GEUS Bulletin, Copenhagen, Denmark, v. 41, p. 1–8, 2018. DOI: 10.34194/geusb.v41.4329. Disponível em: https://geusbulletin.org/index.php/geusb/article/view/4329. Acesso em: 28 sep. 2022.