Circulations: Colonial geology, the Prussian State Geological Institute and the South West African copper (1850–1919). Journal of Namibian Studies : History Politics Culture, [S. l.], v. 28, p. 39–63, 2020. DOI: 10.59670/jns.v28i.209. Disponível em: https://www.namibian-studies.com/index.php/JNS/article/view/209. Acesso em: 3 nov. 2025.