Frequency Characteristics and Resolution of Reflected Waves from Coal Seams[J]. COAL GEOLOGY & EXPLORATION, 1987, 15(4): 47-50.
Citation: Frequency Characteristics and Resolution of Reflected Waves from Coal Seams[J]. COAL GEOLOGY & EXPLORATION, 1987, 15(4): 47-50.
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Frequency Characteristics and Resolution of Reflected Waves from Coal Seams

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