LEADER 01271nam  2200361Ka 450 
001 9910696750903321
005 20080714093053.0
035   $a(CKB)5470000002381363
035   $a(OCoLC)233823983
035   $a(EXLCZ)995470000002381363
100   $a20080714d1996      ua             0
101 0 $aeng
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 00$aUsing ground penetrating radar for roof hazard detection in underground mines$b[electronic resource] /$fGregory M. Molinda ... [and others]
210  1$a[Pittsburgh, Pa.] :$cU.S. Dept. of Energy, Pittsburgh Research Center,$d[1996]
215   $a14 pages $cdigital, PDF file
225 1 $aReport of investigations ;$v9625
300   $aTitle from title screen (viewed on July 11, 2008).
300   $a"1996."
606   $aMine roof control
606   $aGround penetrating radar
615  0$aMine roof control.
615  0$aGround penetrating radar.
701   $aMolinda$b G. M$g(Gregory M.)$01399457
712 02$aPittsburgh Research Center (U.S.)
801  0$bGPO
801  1$bGPO
906   $aBOOK
912   $a9910696750903321
996   $aUsing ground penetrating radar for roof hazard detection in underground mines$93464671
997   $aUNINA