Kudrin, K. Y., A. Starikov, and Y. Korzshov. “Tellurides and Native Elements in Copper-Zinc Ores of Manifestations «Zapadnoe» (Subpolar Urals, Russia)”. Journal of the University of Zulia , Vol. 10, no. 27, Dec. 2019, pp. 118-31, https://produccioncientifica.luz.edu.ve/index.php/rluz/article/view/30002.