M.A. Altalbawy, Farag, and Elham S.S. Darwish. 2011. “Synthesis and Antimicrobial Activity of 1,2,4-Triazolo[4,3-b][1,2,4,5]tetrazines”. Asian Journal of Chemistry 23 (7):2951-55. https://asianpubs.org/index.php/ajchem/article/view/10616.