Lepitkova, S., Trpeski, V., & Mirčovski, V. (2013). Examination of Heavy and Toxic Metals in the Kozjak lake and Treska river with Protection Measures. Geologica Macedonica, 27(1), pp. 77-85. Retrieved from https://js.ugd.edu.mk/index.php/GEOLMAC/article/view/745