Bogdanović D, Stojanović G. Selecting the optimal drilling and blasting design for underground excavations in underground <br> copper mine “Jama” Bor. ume [Internet]. 31Dec.2018 [cited 24Nov.2024];(33):53-0. Available from: https://ume.rgf.bg.ac.rs/index.php/ume/article/view/121