Šijakova Ivanova, T., and L. Robeva Čukovska. “Mineralogical Characteristics of Kyanite from Prilepec, Republic of Macedonia”. Geologica Macedonica, Vol. 28, no. 2, Dec. 2014, pp. pp. 115-120, https://js.ugd.edu.mk/index.php/GEOLMAC/article/view/919.