A. A.-H. El-Asmy, B. Jeragh, and M. S. Ali, “Chelation activity of N’1,N’6-bis((E)-3,4-dihydroxybenzylidene)adipohydrazide towards some transition metal ions”, Eur. J. Chem., vol. 7, no. 3, pp. 283–289, Sep. 2016.