Al-Amin-Al-Azadul Islam, Md., et al. “Synthesis, Characterization and Biological Activity of Vanadium(V) Complexes of 4-N-Hexyloxybenzoylhydrazine”. Asian Journal of Chemistry, vol. 23, no. 3, Nov. 2010, pp. 1075-80, https://asianpubs.org/index.php/ajchem/article/view/16087.