Kovalchukova, O., Ryabov, M., Stash, A., & Berikashvili, T. (2015). Synthesis, Crystal, Molecular Structure and Theoretical Modeling of [Fe(H2O)6]L2·2H2O and [Cr0.14Mn0.86(H2O)6]L2·2H2O (L = 4-Nitro-2,5,6-trioxo-1,2,5,6-tetrahydropyridin-3-olate anion). Asian Journal of Chemistry, 28(4), 825–829. https://doi.org/10.14233/ajchem.2016.19530