Gashi, F., Bilinski, S. F., Bilinski, H., Thaci, B., & Shosholli, S. (2017). Chemical Determination of Heavy Metals in Pb and Zn Concentrates of Trepça (Kosovo) and Correlations Coefficients Study Between Chemical Data. Rudarsko-geološko-Naftni Zbornik, 32(2), 29–35. https://doi.org/10.17794/rgn.2017.2.4