1. Belew LF (ed) (1977) Skylab: our first space station, NASA-SP-400. National Aeronautics and Space Administration, Washington
2. Bell J (1967) An evolutionary program for manned interplanetary exploration. AIAA J Spacecr 4(5):625–630
3. Bilstein RE (ed) (1996) Stages to Saturn: a technological history of the apollo/saturn launch vehicles, NASA-SP-4206. The NASA History Series, National Aeronautics and Space Administration, NASA History Office, Washington
4. Boas R, Crawley EF (2007) Divergence: the impact of lifecycle changes on commonality, seventeenth annual international symposium of the international council on systems engineering, pp 24–28
5. Burgelman RA, Christensen CM, Wheelwright SC, Maidique MA (2003) Strategic management of technology and innovation, 4th revised edn. McGraw Hill Higher Education