Zhang, M. L., Y. D. Zhang, M. Ji, and H. J. Guo. “Estimation of Tunnel Stability and Optimization of Support Parameters for Tunnel below Gob Pillar in Closely-Spaced Coal Seams”. Journal of Mines, Metals and Fuels 67, no. 2 (October 20, 2022): 59–68. Accessed May 9, 2024. http://informaticsjournals.com/index.php/jmmf/article/view/31469.