Alsalim, Tahseen Abdul Qader, et al. “Synthesis and Antioxidant Study of New Hydrazones Derived from Bisdemethoxycurcumin Pyrazole”. European Journal of Chemistry, vol. 8, no. 4, Dec. 2017, pp. 344-8, doi:10.5155/eurjchem.8.4.344-348.1630.