Seyyed Shahabi, Soulmaz, and Mahtab Gharibi. “Synthesis, Structure and Alkylation of 4-(4-Fluoro Phenyl)-5-(isomeric Pyridyl)-1,2,4-Triazole-3-Thiole”. Asian Journal of Chemistry, vol. 24, no. 6, Feb. 2012, pp. 2422-4, https://asianpubs.org/index.php/ajchem/article/view/9149.