CHRISTIANSEN, Sofus. O. Fränzle: Contaminants in Terrestrial Environments. - Series in Terrestrial Environments. Geografisk Tidsskrift, [S. l.], v. 95, 1995. Disponível em: https://tidsskrift.dk/geografisktidsskrift/article/view/42058. Acesso em: 6 dec. 2025.