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Cleat in bituminous coalbeds
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Commercial-quality gas from the multipurpose borehole located in the Pittsburgh coalbed
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Degasification of the Mary Lee coalbed near Oak Grove, Jefferson County, Ala., by vertical borehole in advance of mining
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Geologic factors causing roof instability and methane emission problems
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Hydraulic stimulation increases degasification rate of coalbeds
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The occurrence of minor elements in ash of low-rank coal from Texas, Colorado, North Dakota and South Dakota
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