Jin, Tong-Shou, Guo-Dong Ma, Hong Xie, and Tong-Shuang Li. “Silica Gel-Supported Tungstosilicic Acid: An Efficient Catalyst for Synthesis of Diacetals”. Asian Journal of Chemistry 20, no. 7 (March 30, 2010): 5053–5059. Accessed November 29, 2024. https://asianpubs.org/index.php/ajchem/article/view/12934.