Gouda, M.A. et al. 2016. One-pot pseudo five-component synthesis and antioxidant evaluation of 4,4’-(aryl-methylene)bis(3-methyl-1-phenyl-1H-pyrazol-5-ol). European Journal of Chemistry. 7, 3 (Sep. 2016), 363–367. DOI:https://doi.org/10.5155/eurjchem.7.3.363-367.1474.