1. Douglas, W. H., McIntosh, G. P., and Menegar, L. S. "Spacecraft reliability and qualification," Chapter 10,Gemini MidprogramConference,NASA-SP 121,1966,pp.89-99.
2. Smith, P.D."Apollo experiencereport:Spacecraftstructuresubsystem,"NASATechnicalNoteTND-7780,1974.