Gui, Huaimeng. “A Novel Proximity-Based Range-Free Positioning Algorithm for Wireless Sensor Network Nodes”. International Journal of Online and Biomedical Engineering (iJOE) 14, no. 10 (October 26, 2018): pp. 106–116. Accessed November 21, 2024. https://online-journals.org/index.php/i-joe/article/view/9308.