Dai, Guo-Liang, Hua Yan, Ai-Guo Zhong, and Chuan-Feng Wang. “Cycloaddition Reaction Between Dibromovinylidene and Formaldehyde: A Density Functional Theory Study”. Asian Journal of Chemistry 22, no. 9 (July 9, 2010): 7187–7196. Accessed November 25, 2024. https://asianpubs.org/index.php/ajchem/article/view/11967.