Two-stage leaching of germanium from copper cake under subsequent non-oxidizing and oxidizing conditions. Journal of Mining and Metallurgy, Section B: Metallurgy, [S. l.], v. 61, n. 1, p. 59–70, 2025. Disponível em: https://test.aseestant.ceon.rs/index.php/jmm/article/view/55199. Acesso em: 11 jun. 2026.