Relay program (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Relay program" in English language version.

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books.google.com

Martin, Donald H. (2000). Communications Satellites (fourth ed.). El Segundo, CA: The Aerospace Press. pp. 8–9. ISBN 1-884989-09-8.

"Final Report on the Relay 1 Program" (PDF). NASA-SP-76. NASA. 1966. p. 63. Retrieved 2021-02-07.
"Final Report on the Relay 1 Program" (PDF). NASA-SP-76. NASA. 1966. p. 663. Retrieved 2021-02-07. (list of actual orbit dates and times)
"Significant Achievements in Space Communications and Navigation, 1958-1964" (PDF). NASA-SP-93. NASA. 1966. pp. 30–32. Archived from the original (PDF) on 2010-05-14. Retrieved 2021-02-07.

"Aeronautics and Astronautics, 1965" (PDF). NASA. pp. 449–450. Retrieved 24 April 2020.

"Relay 2 Space Object". U.S. Space Objects Registry. Archived from the original on 2016-12-03. Retrieved 2016-12-02.
"Relay 1 Space Object". U.S. Space Objects Registry. Archived from the original on 2016-12-03. Retrieved 2016-12-02.

"Relay 2 Space Object". U.S. Space Objects Registry. Archived from the original on 2016-12-03. Retrieved 2016-12-02.
"Relay 1 Space Object". U.S. Space Objects Registry. Archived from the original on 2016-12-03. Retrieved 2016-12-02.
"Significant Achievements in Space Communications and Navigation, 1958-1964" (PDF). NASA-SP-93. NASA. 1966. pp. 30–32. Archived from the original (PDF) on 2010-05-14. Retrieved 2021-02-07.