Hou, Shaojie, Yuwei Zhang, and Yuanping Cheng. “APPLICATION OF STATISTICAL PROCESS CONTROL THEORY IN COAL AND GAS OUTBURST PREVENTION”. European Scientific Journal, ESJ 10, no. 10 (September 19, 2014). Accessed April 25, 2024. https://eujournal.org/index.php/esj/article/view/4232.