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