Quantification of uncertainty in mining project related to metal price using mean reversion process and interval type-2 fuzzy sets theory: Kvantifikacija neodređenosti cene metala u rudarskom projektu primenom procesa povratka na srednju vrednost i teorije intervalno rasplinutih skupova drugog tipa. ume [Internet]. 2013 June 30 [cited 2026 Nov. 4];(22):71-84. Available from: https://ume.rgf.bg.ac.rs/index.php/ume/article/view/62