M. S. Aljahdali, Y. H. Elmalik, and G. M. A. El-Reash, “Synthesis of some transition metal complexes of novel 1-methylpyrazole-3-aldehyde-4-(2-pyridyl) thiosemicarbazone: Spectroscopic and in vitro biological activity studies”, Eur. J. Chem., vol. 5, no. 2, pp. 201–208, Jun. 2014.