Journal of Northeastern University(Natural Science)
Coal Seam Hardness Hierarchical Identification Method Based on BP Neural Network
LIU Yong-gang， HOU Li-liang， QIN Da-tong， HU Ming-hui
Journal of Northeastern University Natural Science . 2018, (8): 1163 -1168 .  DOI: 10.12068/j.issn.1005-3026.2018.08.020