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035   $a(CKB)5470000002425659
035   $a(OCoLC)814512747
035   $a(EXLCZ)995470000002425659
100   $a20121026d1989      ua             0
101 0 $aeng
135   $aurbn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aLow-frequency sound propagation modeling over a locally-reacting boundary using the parabolic approximation$b[electronic resource] /$fby J. S. Robertson, W. L. Siegmann and M. J. Jacobson
210  1$aTroy, N.Y. :$cDepartment of Mathematical Sciences, Rensselaer Polytechnic Institute ;$aHampton, Va. :$cNational Aeronautics and Space Administration, Langley Research Center,$d[1989]
215   $a1 online resource (13 pages, 12 unnumbered pages) $cillustrations
225 1 $a[NASA contractor report ;$vNASA-CR-185864]
225 0 $aRPI math. rep. ;$vno. 175
300   $aTitle from title screen (viewed on Oct. 26, 2012).
300   $a"August 31, 1989."
320   $aIncludes bibliographical references (pages 10-12).
606   $aFinite difference theory$2nasat
606   $aLow frequencies$2nasat
606   $aMathematical models$2nasat
606   $aSound propagation$2nasat
615  7$aFinite difference theory.
615  7$aLow frequencies.
615  7$aMathematical models.
615  7$aSound propagation.
700   $aRobertson$b J. S$01407291
701   $aSiegmann$b W. L$01407292
701   $aJacobson$b M. J$01407293
712 02$aRensselaer Polytechnic Institute.$bDepartment of Mathematical Sciences.
712 02$aLangley Research Center.
801  0$bGPO
801  1$bGPO
801  2$bGPO
906   $aBOOK
912   $a9910702249003321
996   $aLow-frequency sound propagation modeling over a locally-reacting boundary using the parabolic approximation$93488374
997   $aUNINA