Quantitative Classifications for Stability of Coal Seams[J]. COAL GEOLOGY & EXPLORATION, 1985, 13(4): 14-16.
Citation:
|
Quantitative Classifications for Stability of Coal Seams[J]. COAL GEOLOGY & EXPLORATION, 1985, 13(4): 14-16.
|
Quantitative Classifications for Stability of Coal Seams[J]. COAL GEOLOGY & EXPLORATION, 1985, 13(4): 14-16.
Citation:
|
Quantitative Classifications for Stability of Coal Seams[J]. COAL GEOLOGY & EXPLORATION, 1985, 13(4): 14-16.
|