Boev, Blažo. “Sivec Type of Marble (Mineralogical, Whiteness and Physico-Mechanical Features)”. Geologica Macedonica 29, no. 2 (December 11, 2015): pp. 167-176. Accessed December 20, 2024. https://js.ugd.edu.mk/index.php/GEOLMAC/article/view/1226.