Boev, Ivan, Tena Šijakova Ivanova, and Sonja Lepitkova. 2025. “ARSENIC, HEAVY METALS AND RARE EARTH ELEMENTS IN TRAVERTINE LIMESTONE QUARRY IN THE MARIOVO AREA, NORTH MACEDONIA ”. Geologica Macedonica 39 (1), 37-45. https://js.ugd.edu.mk/index.php/GEOLMAC/article/view/7371.