Search U.S. government technical reports digitized or harvested by TRAIL.
Evolution of methane detecting devices for coal mines
Methane-oxidizing bacteria :a review of the literature
Portable methane detectors :effects of gases in mine atmospheres
Methane control in United States coal mines, 1972
Control of methane by ventilation of shafts during raise drilling
Site-specific and regional geologic considerations for coalbed gas drainage