Coal reserves in the deposit as a limiting factor for the introducing of mechanised mining technology: Rezerve uglja u ležištu kao ograničavajući faktor uvođenju tehnologija mehanizovanog otkopavanja. ume [Internet]. 2017 Mar. 19 [cited 2026 Nov. 4];(23):21-3. Available from: https://ume.rgf.bg.ac.rs/index.php/ume/article/view/48