Hussain, I. et al. 2015. Synthesis, Characterization and X-Ray Crystal Structure of Dizinc(II) Complex of Pseudo Calixarene Macrocycle Based on 2,2-Methylene-bis[(6-formyl)-4-tert-butylphenol] and 1,3-Diamino-2-propanol. Asian Journal of Chemistry. 27, 7 (Mar. 2015), 2630–2634. DOI:https://doi.org/10.14233/ajchem.2015.18658.