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- Face ventilation measurement with sulfur hexafluoride (SF₆)
- Assessing the methane hazard of gassy coals in storage silos
- New twin scrubber installation for continuous mining machines
- Methane emissions from U.S. coal mines in 1980
- Comparison of aerial and ground surveying of subsidence over an active longwall
- Foundation response to subsidence-induced ground movements :a case study