Boev, I., T. Šijakova Ivanova, and S. Lepitkova. “ARSENIC, HEAVY METALS AND RARE EARTH ELEMENTS IN TRAVERTINE LIMESTONE QUARRY IN THE MARIOVO AREA, NORTH MACEDONIA ”. Geologica Macedonica, Vol. 39, no. 1, June 2025, pp. 37-45, https://js.ugd.edu.mk/index.php/GEOLMAC/article/view/7371.