Liu, W.-H., Gao, S.-T., Zhang, P.-H., Zhou, X., & Wang, C. (2014). Synthesis of 2-Aryl-1-arylmethyl-1H-benzimidazoles Catalyzed by Brønsted Acidic Ionic Liquid under Ultrasonic Irradiation. Asian Journal of Chemistry, 26(7), 1980–1982. https://doi.org/10.14233/ajchem.2014.15606