Ramina, et al. “Synthesis, Characterization and DNA Binding Studies of N,N′-bis(2-Hydroxy-5-Methylbenzylidene)- 2-Hydroxy-Propane-1,3-Diamine Copper(II) and Nickel(II) Complexes”. Asian Journal of Chemistry, vol. 32, no. 7, June 2020, pp. 1667-75, https://asianpubs.org/index.php/ajchem/article/view/2388.