Tavakoli-Hoseini, N., and A. Davoodnia. “[bmim]Br As an Efficient Medium for the Green and Catalyst-Free Synthesis of Biscoumarin Derivatives”. Asian Journal of Chemistry 23, no. 8 (May 6, 2011): 3635–3638. Accessed July 23, 2024. https://asianpubs.org/index.php/ajchem/article/view/10701.