Chen, Lingling, Xiaohui Zhao, Shubei Sun, Yueliang Lu, Xiaoyue Gong, and Xingquan Gao. “A Robust Distributed Power Control Algorithm for Minimum Interference to Primary Users in Underlay Cognitive Radio Networks”. International Journal of Online and Biomedical Engineering (iJOE) 12, no. 12 (December 25, 2016): pp. 4–10. Accessed April 27, 2024. https://online-journals.org/index.php/i-joe/article/view/6443.