Drzazga M, Kozłowicz S, Maj I, Orda S, Radoń A, Ciszewski M. Two-stage leaching of germanium from copper cake under subsequent non-oxidizing and oxidizing conditions. J Min & Metal B Metallurgy [Internet]. 2025 Jul. 16 [cited 2026 Jul. 12];61(1):59-70. Available from: https://asistent.ceon.rs/index.php/jmm/article/view/55199