Wang, Zhenrong, Yuan Yang, and Fengjuan Tao. “Single Borehole Detection of Geological Anomalies in Coal Mine Using Impulse Radar”. Journal of Environmental & Earth Sciences 7, no. 11 (November 3, 2025): 20–36. Accessed January 7, 2026. https://journals.bilpubgroup.com/index.php/jees/article/view/11407.