Vasic, M. B., M. S. Randjelovic, J. Z. Mitrovic, N. I. Stojkovic, B. Z. Matovic, and A. R. Zarubica. “Decolorization of Crystal Violet over TiO2 and TiO2 Doped With Zirconia Photocatalysts”. HEMIJSKA INDUSTRIJA (Chemical Industry), vol. 71, no. 3, July 2017, pp. 259-6, doi:10.2298/HEMIND160521036V.