PANDEY, R.N., et al. “Low-Valent Organometallic Derivatives of Palladium(O), Platinum(O) and Rhodium(I) With 4-Amino-5-Mercapto-3-Substituted-1,2,4-Triazoles”. Asian Journal of Chemistry, vol. 22, no. 3, Mar. 2010, pp. 1661-4, https://asianpubs.org/index.php/ajchem/article/view/11318.