Mahdi, A.E. (2013) “Spectral Study of Pt (II), Cr (II) Polymeric Complexes of the Ligand N- Crotonyl -2- Hydroxy-Phenylazomethine”, Al-Khwarizmi Engineering Journal, 9(4), pp. 39–45. Available at: https://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/183 (Accessed: 4 January 2026).