“Spectroscopic and Nonlinear Optical Properties of Biologically Active 3‐(2/3/4‐Pyridyl)-4‐amino‐1,2,4‐triazole‐5‐thiones by Density Functional Theory Method” (2019) The Eurasia Proceedings of Science, Technology, Engineering and Mathematics, 7, pp. 371–379. Available at: https://epstem.net/index.php/epstem/article/view/271 (Accessed: 19 January 2026).