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↑ Teltsch, Kathleen (June 15, 1963), “6 Soviet Space Failures Believed To Have Been Probes of Planets”, The New York Times (United Nations, NY): 2, June 16, 1963
↑ Hall, Christopher D. (September 18, 2003), West Ford dipoles, Blacksburg, Virginia: Virginia Tech Department of Aerospace and Ocean Engineering, https://web.archive.org/web/20070312200131/http://www.aoe.vt.edu/~cdhall/Space/archives/000289.html, "many clumps of the needles are indeed still in orbit"
↑ Barhorst, L.J.C., ed. (January 20, 2008), written at Medemblik, The Netherlands, RAE Table of Earth Satellites, Farnborough, England: Royal Aerospace Establishment / Defence Research Agency, p. 34, http://satlist.nl/RAE/RAE1963.doc, "148 pieces, 94 have decayed"
↑ space-track.org提供 Stuff in Space 2017年10月13日閲覧時点
(May 1999), Project West Ford, “The Air Force Role in Developing International Outer Space Law” (PDF), Air Force History and Museums Program (Maxwell Air Force Base, Alabama: Air University Press): 63, http://www.au.af.mil/au/awc/awcgate/space/terrill.pdf
↑ Butrica, Andrew J., ed., Introduction, “Beyond the Ionosphere: The Development of Satellite Communications”, history.nasa.gov, The NASA History Series (NASA), http://history.nasa.gov/SP-4217/intro.htm
↑ Bondi, H. (June 1962), “West Ford Project, Introductory Note by the Secretary”, Quarterly Journal of the Royal Astronomical Society 3: 99, https://ui.adsabs.harvard.edu/abs/1962QJRAS...3...99./abstract
↑ “Protests Continue Abroad”, The New York Times (London: Reuters): 12, (October 22, 1961), October 23, 1961