Underground mining exploration in the ’Lajkovača’ copper deposit in Valjevo-Kosjerić: Jamski istražni radovi u ležištu bakra ’Lajkovača’ Valjevo-Kosjerić. ume [Internet]. 2013 Dec. 31 [cited 2026 Nov. 14];(23):1-9. Available from: https://ume.rgf.bg.ac.rs/index.php/ume/article/view/46