Tuan, Le Minh, Nguyen Trong Uyen, and Nguyen Dinh Bang. “Vibrational Spectra Investigations of Ytterbium Chelate With Isoleucine As Ligand”. Vietnam Journal of Chemistry 47, no. 5 (August 28, 2014): 652. Accessed May 17, 2024. https://vjs.ac.vn/index.php/vjchem/article/view/4663.