STOPIĆ, Srećko; FRIEDRICH, Bernd. Recovery of cobalt from primary and secondary materials - an overiew. Vojnotehnički glasnik / Military Technical Courier, [S. l.], v. 68, n. 2, p. 321–337, 2020. DOI: 10.5937/vojtehg68-26117. Dostupno na: https://asistent.ceon.rs/index.php/vtg/article/view/26117. Pristupljeno: 12 jul. 2026.