FAWZY EL-HUSSEINY, AMEL. “Synthesis of 2[N-Cinnamlideneamino]-5-Nitro Phenol and Its Metal(II) Complexes and Evaluation of Their Antitumor Activities”. Asian Journal of Chemistry, vol. 22, no. 1, Dec. 2009, pp. 603-14, https://asianpubs.org/index.php/ajchem/article/view/16684.