Wang, Y., Lu, G. and Wu, L. (2011) “Silica Sulfuric Acid as Heterogeneous and Recoverable Catalysts for the Synthesis of Dithienylmethanes under Solvent-Free Conditions”, Asian Journal of Chemistry, 23(9), pp. 4221–4222. Available at: https://asianpubs.org/index.php/ajchem/article/view/10820 (Accessed: 23 November 2024).