A probe into “mining technique in the condition of floor failure” for coal seam above longwall goafs
Guo-rui Feng, Xian-xia Wang, Li-xun KangVolume:
14
Language:
english
Pages:
5
DOI:
10.1007/s12404-008-0004-6
Date:
March, 2008
File:
PDF, 282 KB
english, 2008