Boev, I., O. Spasovski, D. Mirakovski, and E. Karakaseva. “Geochemistry and Origin of Particles Pm-10 in the Area of Tikveš, Republic of Macedonia”. Geologica Macedonica, Vol. 28, no. 2, Dec. 2014, pp. pp. 139-148, https://js.ugd.edu.mk/index.php/GEOLMAC/article/view/917.