Zhanga, Minglei, Yidong Zhangb, Ming Ji, and Peng Jiao. “Research on Reasonable Mining Scheme for Coal Recovery in Thick Coal Seam Under Buildings and Other Structures”. Journal of Mines, Metals and Fuels 67, no. 2 (October 20, 2022): 90–98. Accessed May 9, 2024. http://informaticsjournals.com/index.php/jmmf/article/view/31488.