Arora, Kishor. “Synthesis and Spectral Studies of Thorium(IV) and Dioxouranium(VI) Complexes of Schiff Base Derived from Benzocain and P-Dimethyl Amino Benzaldehyde”. Asian Journal of Chemistry, vol. 7, no. 2, July 2012, pp. 424-8, https://asianpubs.org/index.php/ajchem/article/view/24305.