Dong, M., and Z. Peng. “Experimental Study of Wettability Alteration to Gas Wetness Method to Enhance Coal Bed Methane Production”. Journal of Mines, Metals and Fuels, vol. 66, no. 4, Oct. 2022, pp. 219-22, https://informaticsjournals.com/index.php/jmmf/article/view/31687.