RAI, H.C., RAJEEV KUMAR, ANIL KUMAR, and Priyanka. 2010. “Metal Dihydrazide Precursors As Building Blocks for New Macrocyclic Architechtures With Tetradentate Octaaza Dibasic Ligands”. Asian Journal of Chemistry 22 (6):4415-20. https://asianpubs.org/index.php/ajchem/article/view/16925.