Wang, G.Q., W.X. Zhang, J.C. Liang, G.Y. Chen, Z.Y. Wei, and Long Zhang. “Preparation of C5 Petroleum Resins Using Et3NHCl-AlCl3 As Catalyst”. Asian Journal of Chemistry 25, no. 5 (December 11, 2012): 2829–2832. Accessed July 3, 2024. https://asianpubs.org/index.php/ajchem/article/view/25_5_105.