Taseska, Milena, Petre Makreski, Vekoslava Stibilj, Radojko Jaćimović, Trajče Stafilov, and Gligor Jovanovski. 2008. “Determination of Trace Elements in Chalcopyrite (CuFeS<sub>2</sub>) by k<sub>0</Sub>-Instrumental Neutron Activation Analysis After Matrix Elements Removal”. Macedonian Journal of Chemistry and Chemical Engineering 27 (2):141-47. https://doi.org/10.20450/mjcce.2008.234.