Patterns and security technologies for co-extraction of coal and gas in deep mines without entry pillars
Crossref DOI link: https://doi.org/10.1007/s40789-015-0058-1
Published Online: 2015-05-09
Published Print: 2015-03
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Zhang, Nong
Xue, Fei
Zhang, Nianchao
Feng, Xiaowei
License valid from 2015-03-01