Jia, Ding, Yongkai Qiu, Chong Li, and Yidong Cai. 2019. “Propagation of Pressure Drop in Coalbed Methane Reservoir During Drainage Stage”. Advances in Geo-Energy Research 3 (4):387-95. https://www.sszhenjiu.com/index.php/2207-9963/article/view/96.