01362nam 2200349Ka 450 991069659530332120080407135423.0(CKB)5470000002378894(OCoLC)220926544(EXLCZ)99547000000237889420080407d2007 ua 0engtxtrdacontentcrdamediacrrdacarrierNew technology for ground control in multiple-seam mining[electronic resource][Pittsburgh, PA] :U.S. Dept. of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health,[2007]2 unnumbered pages digital, PDF fileTechnology news ;no. 529DHHS (NIOSH) publication ;no. 2008-103Title from title screen (viewed on Mar. 20, 2008)."Milestones in Mining Safety and Health Technology.""November 2007."Ground control (Mining)United StatesGround control (Mining)Pittsburgh Research Laboratory (National Institute for Occupational Safety and Health)GPOGPOBOOK9910696595303321New technology for ground control in multiple-seam mining3189161UNINA