Dai, Zhihong, Xinhua Peng, Xiongzi Dong, Chunjie Shi, and Yuan Rong. 2012. “An Eco-Friendly and Efficient Synthesis of Benzoylformic Acid and Methyl Benzoylformate from Styrene”. Asian Journal of Chemistry 24 (11):4979-85. https://asianpubs.org/index.php/ajchem/article/view/9810.