01462nam 2200385Ia 450 991069710440332120230902162158.0(CKB)5470000002385873(OCoLC)694080900(EXLCZ)99547000000238587320101222d1970 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierAttenuation of high-frequency ground waves over an inhomogeneous earth[electronic resource] /Rayner K. RosichBoulder, Colo. :U.S. Dept. of Commerce, Office of Telecommunications, Institute for Telecommunication Sciences,[1970]1 online resource (iii, 87 pages) illustrations, mapOT/ITS research report ;6Title from title screen (viewed on Nov. 15, 2010).Paper version no longer available for sale by the Supt. of Docs."December 1970."Includes bibliographical references (pages 25-27).OT/ITS research report ;6.Radio wavesAttenuationRadio wavesAttenuation.Rosich Rayner K1414768Institute for Telecommunication Sciences.GPOGPOBOOK9910697104403321Attenuation of high-frequency ground waves over an inhomogeneous earth3514955UNINA