Ramesh Kumar, S., Y. Venkateshwarulu, and P. Leelavathi. “Synthesis of 1,5-Benzodiazepines Catalyzed by Zinc Triflate in Solvent-Free Medium”. Asian Journal of Chemistry 23, no. 4 (December 29, 2010): 1611–1614. Accessed November 24, 2024. https://asianpubs.org/index.php/ajchem/article/view/10220.