Rastogi, Raj Kamal, et al. “SYNTHESIS AND CHARACTERIZATION OF TI (III), V (III),VO (IV), MOO (V),FE (II) AND FE (III) COMPLEXES OF BENZIL- 2,4-DINITROPHENYL HYDRAZONE P-BROMO ANILINE”. Green Chemistry & Technology Letters, vol. 2, no. 4, Dec. 2016, pp. 177-9, doi:10.18510/gctl.2016.242.