A selection methodology on reasonable width of stabilized coal pillar for retracement channel in longwall working face by Pengfei Shan, Pengfei Shan, Pengfei Shan, Zheng Meng, Zheng Meng, Xingping Lai, Xingping Lai, Xingping Lai, Xiongfei Xue, Chenwei Li, Chenwei Li, Jindong Wang, Wei Li, Wei Li, Long Zhang, Long Zhang, Bojia Xi, Bojia Xi, Hongjun Jiang

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