Hu1, Chengbo, Yuncheng Xie2, Qiang Xu1, and Jiangping Meng2. “Synthesis and Characterization of Tungstophosphoric Heteropolyacid (H5PW11TiO40) Containing Titanium”. Asian Journal of Chemistry 26, no. 20 (September 26, 2014): 6895–6897. Accessed July 23, 2024. https://asianpubs.org/index.php/ajchem/article/view/26_21_41.