GRAVESEN, P.; ROLL JAKOBSEN, P. Radon content in Danish till deposits: relationship with redox conditions and age. GEUS Bulletin, Copenhagen, Denmark, v. 20, p. 39–42, 2010. DOI: 10.34194/geusb.v20.4895. Disponível em: https://geusbulletin.org/index.php/geusb/article/view/4895. Acesso em: 29 mar. 2024.