Experimental study on time-frequency characteristics of hydraulic fracturing acoustic emission in coal shale
TANG Jupeng, LU Jiangwei, XU Peng, DING Jiahui, QI Tong
China Safety Science Journal . 2017, (10): 87 -92 .  DOI: 10.16265/j.cnki.issn1003-3033.2017.10.015