倾斜煤层下行开采沿空掘巷煤柱尺寸研究
成世兴,华心祝,陈登红,等
Study on the Size of the Coal Pillar in the Inclined Coal Seam Downward Mining
煤炭工程 . 2016, (11): 11 -14 .  DOI: 10.11799/ce201611004