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Three-dimensional numerical simulation of methane drainage by high-level drill holes in a lower protective coal seam with a “U” type face

Crossref DOI link: https://doi.org/10.1007/s40789-015-0053-6

Published Online: 2015-03-14

Published Print: 2014-12

Update policy: https://doi.org/10.1007/springer_crossmark_policy