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2. Green mining of coal resources harmonizing with environment;Qian;J China Coal Soc,2007
3. Long-term stability of a backfilled room-and-pillar test section at the Buick mine, Missouri, USA;Tesarik;Int J Rock Mech Min Sci,2007
4. Short wall mining technology and its applications;Liu,2007
5. Longwall mining;Peng,2006