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Sources:
Swenson, Lloyd; Grimwood, James & Alexander, Charles, This New Ocean, NASA History Series, 1989, history.nasa.gov/SP-4201/toc.htm
Ludwig, George, The First Explorer Satellites, October 9, 2004, www-pw.physics.uiowa.edu/van90...
Vanguard - a History, NASA History Series, history.nasa.gov/SP-4202/toc2...
Ackmann, Martha, The Mercury 13: The True Story of Thirteen Women and the Dream of Space Flight, Random House, 2003
Berger, Eric, The First Creature in Space Was a Dog. She Died Miserably 60 Years Ago, Are Technica, November 3, 2017, web.archive.org/web/201712011...
23 июн 2021