Project Echo (English Wikipedia)
Analysis of information sources in references of the Wikipedia article "Project Echo" in English language version.
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archive.org
- NASA/Langley Research Center (NASA-LaRC) (29 June 1965). "Static Inflation Test of 135 ft Satellite In Weeksville, North Carolina". Internet Archive. Retrieved 15 March 2020.
- Gray, Mike (1992). Angle of Attack: Harrison Storms and the Race to the Moon. W. W. Norton & Co. pp. 5–6. ISBN 0-393-01892-X.
astronautix.com
- Astronautix.com, Echo Archived 2008-05-11 at the Wayback Machine
- "Shotput". Astronautix. Archived from the original on 28 December 2016. Retrieved 27 February 2021.
harvard.edu
ui.adsabs.harvard.edu
- Butrica, Andrew J. (1997). Beyond the Ionosphere: Fifty Years of Satellite communication. Washington, D.C.: National Aeronautics and Space Administration. Bibcode:1997bify.book.....B. OCLC 229170160.
This article incorporates text from this source, which is in the public domain.
ieee.org
spectrum.ieee.org
- Marsh, Allison (12 November 2020). "When a Giant Mylar Balloon Was the Coolest Thing in Space". IEEE Spectrum. Retrieved 10 February 2021.
inforum.com
legacy.inforum.com
- Gilmour, Gerry (11 September 1999). "A mind for business: Schjeldahl's ingenuity helps keep bread fresh, hearts safely beating". The Forum. Fargo, North Dakota. Archived from the original on 13 July 2011.
nasa.gov
history.nasa.gov
- Butrica, Andrew J. (1996). To See the Unseen: A History of Planetary Radar Astronomy. NASA. Archived from the original on 23 August 2007. This article incorporates text from this source, which is in the public domain.
- Butrica, Andrew J. (1997). Beyond the Ionosphere: Fifty Years of Satellite communication. Washington, D.C.: National Aeronautics and Space Administration. Bibcode:1997bify.book.....B. OCLC 229170160. This article incorporates text from this source, which is in the public domain.
- Hansen, James R. (1995). Spaceflight Revolution: NASA Langley Research Center from Sputnik to Apollo. Washington, D.C.: NASA. OCLC 62404314. This article incorporates text from this source, which is in the public domain.
nssdc.gsfc.nasa.gov
- "Echo 2". NASA. Retrieved 30 January 2019. This article incorporates text from this source, which is in the public domain.
- "Echo 1". NASA. Retrieved 8 October 2015. This article incorporates text from this source, which is in the public domain.
samadhi.jpl.nasa.gov
- "Echo 1, 1A, 2". Mission and Spacecraft Library. NASA. Archived from the original on 27 May 2010. Retrieved 6 February 2010. This article incorporates text from this source, which is in the public domain.
descanso.jpl.nasa.gov
- Davis and Tanimoto. "Mechanical Development of Antenna Systems" (PDF). NASA JPL. Retrieved 8 January 2022.
science.nasa.gov
- Coulter, Dauna (31 July 2008). "A Brief History of Solar Sails". NASA. Archived from the original on 28 January 2010. Retrieved 4 February 2010. This article incorporates text from this source, which is in the public domain.
nobelprize.org
- "Arno Penzias - Biographical". nobelprize.org.
web.archive.org
- "Echo 1, 1A, 2". Mission and Spacecraft Library. NASA. Archived from the original on 27 May 2010. Retrieved 6 February 2010. This article incorporates text from this source, which is in the public domain.
- Astronautix.com, Echo Archived 2008-05-11 at the Wayback Machine
- Butrica, Andrew J. (1996). To See the Unseen: A History of Planetary Radar Astronomy. NASA. Archived from the original on 23 August 2007. This article incorporates text from this source, which is in the public domain.
- Gilmour, Gerry (11 September 1999). "A mind for business: Schjeldahl's ingenuity helps keep bread fresh, hearts safely beating". The Forum. Fargo, North Dakota. Archived from the original on 13 July 2011.
- "Shotput". Astronautix. Archived from the original on 28 December 2016. Retrieved 27 February 2021.
- Coulter, Dauna (31 July 2008). "A Brief History of Solar Sails". NASA. Archived from the original on 28 January 2010. Retrieved 4 February 2010. This article incorporates text from this source, which is in the public domain.
worldcat.org
search.worldcat.org
- Butrica, Andrew J. (1997). Beyond the Ionosphere: Fifty Years of Satellite communication. Washington, D.C.: National Aeronautics and Space Administration. Bibcode:1997bify.book.....B. OCLC 229170160. This article incorporates text from this source, which is in the public domain.
- Hansen, James R. (1995). Spaceflight Revolution: NASA Langley Research Center from Sputnik to Apollo. Washington, D.C.: NASA. OCLC 62404314. This article incorporates text from this source, which is in the public domain.