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- Hydraulic stimulation of a surface borehole for gob degasification
- Three coal mine gob degasification studies using surface boreholes and a bleeder system
- Control of methane by ventilation of shafts during raise drilling
- Building seals by pneumatic stowing in mine closure operations
- Sealing openings in abandoned mines by pneumatic stowing
- Long-term effectiveness of deep mine sealing at Moraine State Park, Butler County, Pa.
- Quartz dust sources during overburden drilling at surface coal mines