01385nam 2200397 a 450 991069254340332120040610145603.0(CKB)5470000002354021(OCoLC)55628739ocm55628739(OCoLC)995470000002354021(EXLCZ)99547000000235402120040610d2004 ua 0engurmn||||||txtrdacontentcrdamediacrrdacarrierSpectrum management[electronic resource] better knowledge needed to take advantage of technologies that may improve spectrum efficiency : report to congressional requesters[Washington, D.C.] :U.S. General Accounting Office,[2004]Title from title screen (viewed on June 8, 2004)."May 2004."Paper version available from: U.S. General Accounting Office, 441 G St., NW, Rm. LM, Washington, D.C. 20548."GAO-04-666."Includes bibliographical references.Spectrum management Radiofrequency spectroscopyFrequency spectraRadiofrequency spectroscopy.Frequency spectra.GPOGPOBOOK9910692543403321Spectrum management3112911UNINA