H. Zhu, J. Zhu, C. Chen, Z. Wei, and L. Tian, “Synthesis, Characterization and Antibacterial Activities of Manganese(II), Nickel(II), Copper(II) and Zinc(II) Complexes of the Hydrazone Compounds Derived from 1-Phenyl-3-methyl-4-acyl-pyrazole and Benzoyl Hydrazine”, ajc, vol. 25, no. 15, pp. 8444–8446, Sep. 2013.