Sun, G., R. Zhang, and K. Tian. “Experimental Study of the Evolution of Permeability in Coal Containing Gas During Short-Term Creep under Multi-Stage Loading”. Journal of Mines, Metals and Fuels, vol. 66, no. 8, Oct. 2022, pp. 414-22, https://informaticsjournals.com/index.php/jmmf/article/view/31729.