Bugarčić, M. D., M. Milivojević, A. Marinković, B. Marković, M. Sokić, N. Petronijević, and J. Stojanović. “Application of Raw Volcanic Rock Found in Etna Valley As an Adsorbent of Chromates, Arsenates and Selenates”. Metallurgical and Materials Engineering, vol. 24, no. 2, July 2018, pp. 133-44, doi:10.30544/366.