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The geologic character of some coal wants at the Westland Mine in southwestern Pennsylvania

Subsidence over four room-and-pillar sections in southwestern Pennsylvania

The relation of geology to mine roof conditions in the Pocahontas No. 3 coalbed

Geologic structures in coal mine roof

Geologic factors in coal mine roof stability :a progress report

Feasibility of water diversion and overburden dewatering

Geotechnology in slate quarry operations

Coal mine roof instability :categories and causes

The character of five selected LANDSAT lineaments in southwestern Pennsylvania

Hillseam geology and roof instability near outcrop in eastern Kentucky drift mines

Leakage across a bituminous coal mine barrier


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