Aquifer-protective mining technique and its application in shallowly buried coal seams in Northwest of China
Zhang Dong-sheng, Ma Li-qiang, Wang Xu-feng, Fan Gang-weiVolume:
1
Year:
2009
Language:
english
DOI:
10.1016/j.proeps.2009.09.012
File:
PDF, 367 KB
english, 2009