R. Pandey, R. Singh, R. Kumari, S. Sinha, and A. Sahay, “Thioamide Bands and Nature of Bonding in the metal Complexes of 3-(4-Pyridyl)-4-Phenyl Triazoline-5-Thione ”, ajc, vol. 5, no. 3, pp. 552–558, Mar. 2010.