Chakraborti, Indranil. 2010. “Synthesis and Characterization of Some 4f-Metal Ion Complexes of 4[N-(3&Acute; -Nitrobenzalidene)Amino] Antipyrine Thiosemicarbazone ”. Asian Journal of Chemistry 15 (2):813-20. https://asianpubs.org/index.php/ajchem/article/view/21704.