Mitić, S., Radošević, B., Milojević, D. and Trobozić, D. (2013) “Underground mining exploration in the ’Lajkovača’ copper deposit in Valjevo-Kosjerić”, Podzemni radovi, (23), pp. 1-9. Available at: https://ume.rgf.bg.ac.rs/index.php/ume/article/view/46 (Accessed: 29March2024).