Dong, W.-K. et al. 2013. Synthesis and Crystal Structure of 6-Ethoxy-4’-chloro-2,2’-[ethylenedioxybis(nitrilomethylidyne)]diphenol. Asian Journal of Chemistry. 25, 17 (Nov. 2013), 9978–9980. DOI:https://doi.org/10.14233/ajchem.2013.15878.