BOEV, Ivan et al. Geochemistry and origin of particles pm-10 in the area of TikveŇ°, Republic of Macedonia. Geologica Macedonica, [S.l.], v. 28, n. 2, p. pp. 139-148, dec. 2014. ISSN 1857-8586. Available at: <http://js.ugd.edu.mk/index.php/GEOLMAC/article/view/917>. Date accessed: 02 june 2020.