ARRTrumić, MilanBanješević, MiodragSokolović, JovicaSvrkota, Igor2023-12-252023-12-2520141450-5959www.jmm-mining.comhttps://repozitorijum.tfbor.bg.ac.rs/handle/123456789/906enJMM Section A - Mining Volume 50 (1) 2014article