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issue12/
issue12/
http://aapgbull.geoscienceworld.org/content/vol68/issue12/
Influence of depositional environment on type and probability of encountering coalbed discontinuities
Effects of clastic dikes on roof-rock stability in central Pennsylvania coal mine
P953
Q24265352-24D6C0A3-2085-4DCF-A4F5-D8A37F6788D7
Q24265353-92D45EEB-C720-4C4F-8116-5DB16C2194D2
P953
issue12/
http://aapgbull.geoscienceworld.org/content/vol68/issue12/