Kano, Naoki, Meiling Pang, Yanling Deng, and Hiroshi Imaizumi. “Adsorption of Rare Earth Elements (REEs) onto Activated Carbon Modified With Potassium Permanganate (KMnO4)”. Journal of Applied Solution Chemistry and Modeling 6, no. 2 (June 17, 2017): 51–61. Accessed May 2, 2024. https://www.lifescienceglobal.com/pms/index.php/JASCM/article/view/4712.