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035   $a(EXLCZ)995470000002471458
100   $a20090212d1958      ua             0
101 0 $aeng
135   $aurunu||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aOrbital data and preliminary analyses of Satellites 1957 Alpha and 1957 Beta /$fcompiled by F.L. Whipple, L.G. Boyd, J.A. Hynek, and G.F. Shilling
210  1$aWashington, D.C. :$cSmithsonian Institution,$d1958.
215   $a1 online resource (vii pages, pages 189-347) $cillustrations, map
225 1 $aSmithsonian contributions to astrophysics ;$vvolume 2, number 10
320   $aIncludes bibliographical references (page 347).
606   $aSputnik satellites
606   $aArtificial satellites$zSoviet Union$xTracking
615  0$aSputnik satellites.
615  0$aArtificial satellites$xTracking.
700   $aWhipple$b Fred L$g(Fred Lawrence),$f1906-2004,$0462897
702   $aBoyd$b Lyle Gifford$f1907-
702   $aHynek$b J. Allen$g(Joseph Allen),$f1910-1986,
702   $aSchilling$b G. F.
712 02$aSmithsonian Astrophysical Observatory,
801  0$bMKN
801  1$bMKN
801  2$bOCLCE
801  2$bOCLCO
801  2$bOCLCQ
801  2$bOCLCF
801  2$bOCLCQ
801  2$bGPO
906   $aBOOK
912   $a9910709677603321
996   $aOrbital data and preliminary analyses of Satellites 1957 Alpha and 1957 Beta$93499879
997   $aUNINA