1. 1DefenseSystemsManagementCollege,andDefenseSystemsManagementCollege.Press,"Systemsengineering fundamentals,"Defense Systems Management College Press, Fort Belvoir,Va.;Washington, D.C.1999, pp.194.
2. 2Blair,J.C.,Ryan,R.S.,andSchutzenhofer,L.A."LaunchVehicleDesignProcess:Characterization,TechnicalIntegration, and Lessons Learned," NASA, TP-2001-210992,2001.
3. Constraint-based conceptual design and automated sensitivity analysis for airship concept studies