Li, Xiuping, Rongxiang Zhao, Yuchun Zhai, and Peihua Ma. 2014. “UV-Shielding and Photocatalytic Properties of ZnO-CeO2-TiO2 Composite”. Asian Journal of Chemistry 26 (15):4566-70. https://doi.org/10.14233/ajchem.2014.16110.