Chen, W., et al. “Synthesis and Antifungal Evaluation of 1,2,4-Triazolo[1,5-Α]pyrimidine Bearing 1,2,4-Triazole Heterocycle Derivatives”. Asian Journal of Chemistry, vol. 23, no. 2, Oct. 2010, pp. 602-8, https://asianpubs.org/index.php/ajchem/article/view/15868.