Zhang, J. et al. 2015. Synthesis and Structural Characterization of Trinuclear Cu2+, Zn2+ and Zn2+-Eu3+ Complexes Based on 2,3-Dihydroxybenzene-1,4-dicarbaldehyde, 1,3-bis(Aminooxy)propane with 3-Ethoxysalicylaldehyde. Asian Journal of Chemistry. 27, 2 (Jan. 2015), 654–656. DOI:https://doi.org/10.14233/ajchem.2015.17547.