LEADER 01446aam 2200421I 450 001 9910711394903321 005 20160202091802.0 024 8 $aGOVPUB-C13-95e423ccc78ece37b5686957554ea8cf 035 $a(CKB)5470000002482078 035 $a(OCoLC)936371232 035 $a(EXLCZ)995470000002482078 100 $a20160202d1963 ua 0 101 0 $aeng 181 $2rdacontent 182 $2rdamedia 183 $2rdacarrier 200 10$aMean electron density variations of the quiet ionosphere no. 9 /$fJ. W. Wright, L. R. Wescott, D. J. Brown 210 1$aGaithersburg, MD :$cU.S. Dept. of Commerce, National Institute of Standards and Technology,$d1963. 215 $a1 online resource 225 1 $aNBS technical note ;$v40-9 300 $a1963. 300 $aContributed record: Metadata reviewed, not verified. Some fields updated by batch processes. 300 $aTitle from PDF title page. 320 $aIncludes bibliographical references. 606 $aIonosphere 615 0$aIonosphere. 700 $aWright$b J. W$01392660 701 $aBrown$b D. J$0383088 701 $aWescott$b L. R$01409945 701 $aWright$b J. W$01392660 712 02$aUnited States.$bNational Bureau of Standards. 801 0$bNBS 801 1$bNBS 801 2$bGPO 906 $aBOOK 912 $a9910711394903321 996 $aMean electron density variations of the quiet ionosphere no. 9$93544619 997 $aUNINA