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References
- ↑ Ann Beardsley, C. Tony Garcia, Joseph Sweeney, Historical Guide to NASA and the Space Program, p. 220, Rowman & Littlefield, 2016 ISBN 1442262877.
- ↑ Robert Godwin, Dyna-Soar: Hypersonic Strategic Weapons System, pp. 141-142, Apogee Books, 2003 ISBN 1896522955.
- ↑ "Lunar Expedition Plan: Lunex" (PDF). 12 July 1961.
- ↑ "SLS". www.astronautix.com. Archived from the original on December 28, 2016. Retrieved 2018-10-15.
- ↑ BLEYMAIER, JOSEPH (1963-12-11). "THE TITAN III STANDARDIZED SPACE LAUNCH SYSTEM". Heterogeneous Combustion Conference. Reston, Virginia: American Institute of Aeronautics and Astronautics. doi:10.2514/6.1963-1407.
- ↑ "PROGRAM 624A. PROGRAM DOCUMENTATION REQUIREMENTS GENERAL SPECIFICATION". 1962-11-01. Archived from the original on April 15, 2022.
{{cite journal}}: Cite journal requires|journal=(help) - ↑ Information, Reed Business (1962-09-06). New Scientist. Reed Business Information.
