Chamoli, R.P., Shailendra Prakhash, and D.P. Kothiyal. “Synthetic and Structural Studies on Some New Butenolactones”. Asian Journal of Chemistry 12, no. 1 (March 30, 2010): 324–326. Accessed November 28, 2024. https://asianpubs.org/index.php/ajchem/article/view/22935.