R. Dev, A. Bhattarai, N. Chaudhary, and P. Mishra, “Synthesis, Spectroscopic Characterization and Antibacterial Assessment of Zirconium(II) and Palladium(II) Complexes of Tetracycline-Salicylaldehyde Mixed Ligand”, ajc, vol. 32, no. 6, pp. 1473–1481, May 2020.