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• Cementation of bituminous-coal-mine roof strata :injection of epoxy and polyester-type resins
• Use of polyester-type resin to stabilize fractured rock :a progress report
• Comparison of trip lights and reflectors
• Moving longwall shield supports at the York Canyon mine, Raton, N. Mex.
• Three potential longwall mining methods for thick coal seams in the western United States