GULER, ERSIN. “Synthesis and Characterization of Nickel(II) and Copper(II) Complexes of The Schiff Bases Derived from 2,4,6- 3,5,6- Trimethyl-3-Cyclohexene-1-Carboxaldehyde and Glycine”. Asian Journal of Chemistry, vol. 20, no. 5, Mar. 2010, pp. 4041-6, https://asianpubs.org/index.php/ajchem/article/view/12724.