Search results for: Liu Lang
International Journal of Coal Geology > 2011 > 87 > 2 > 139-149
International Journal of Coal Geology > 2010 > 82 > 1-2 > 27-36
International Journal of Coal Geology > 2011 > 87 > 2 > 139-149
International Journal of Coal Geology > 2010 > 82 > 1-2 > 27-36