81
Rebecca Wright, «Interview with Michael Griffin,» NASA Oral History Project, January 12, 2013.
82
«Commercial Orbital Transportation Services: A New Era in Spaceflight,» NASA, SP-2014–617, June 2, 2014.
83
Hackler, «Interview with Michael C. Wholley».
84
Rebecca Hackler, «Sumara M. Thompson-King, Courtney B. Graham, and Karen M. Reilly,» NASA Oral History Project, March 19, 2013.
85
Alexander MacDonald, The Long Space Age: The Economic Origins of Space Exploration from Colonial America to the Cold War (New Haven, CT: Yale University Press, 2017), 133.
