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Determination of low concentrations of methane in coal-mine-air samples by infrared absorption spectrometry

Development of recording methanometers and recording anemometers for use in underground coal mines

A continuous-recording methanometer for exhaust fan monitoring

Peak methane concentrations during coal mining:an analysis

Methane emissions from four working places in the Beckley mine, Raleigh County, W. Va.

Methane emission from U.S. coal mines in 1975 :a survey : a supplement to Information circulars 8558 and 8659

Methane accumulations in coal mine roof cavities


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