J. Kharodawala, Mohammad, and Arjun K. Rana. “Studies on Some Metal Complexes of 4-Formyloxime-1,3- Diphenyl-2-Pyrazolin-5-One ”. Asian Journal of Chemistry, vol. 14, no. 2, Mar. 2010, pp. 703-8, https://asianpubs.org/index.php/ajchem/article/view/22140.