Thuy, Thanh Thi Thu, Thai Thuy Duong, Pham Ngoc Khanh, Dang Vu Luong, and Nguyen Tien Tai. “NMR Spectroscopy Using a Chiral Lanthanide Shift Reagent to Determine the Enantiomeric Purity of Nicotine and the Geometric Parameters of Lanthanide-Nicotine Complex”. Vietnam Journal of Chemistry 48, no. 5 (August 15, 2012). Accessed May 4, 2024. https://vjs.ac.vn/index.php/vjchem/article/view/2198.