Sleema, B., and Geetha Parameswaran. “X-Ray Diffraction Studies of Iron(II), Nickel(II) and Copper(II) Complexes of O-Vanillin-L-Histidine”. Asian Journal of Chemistry 14, no. 2 (July 19, 2012): 961–966. Accessed July 23, 2024. https://asianpubs.org/index.php/ajchem/article/view/22244.