Y. R. Girish, K. S. Sharath Kumar, K. H. Narasimhamurthy, K. S. Rangappa, and S. Shashikanth, “ZrO2 Nanoparticles-Supported Cu2(II)-β-Cyclodextrin Mediated Synthesis of N-2 Substituted Tetrazoles by [2+3] Cycloaddition and Post Tetrazole Alkylation”, ajc, vol. 30, no. 5, pp. 1093–1098, Mar. 2018.