1. Johnson, E. H., and Venkayya, V. B. 'Automated Structural Optimization System (ASTROS), VolumeI- Theoretical Manual', AFWAL-TR-88-3028AI, hForce Wright Aeronautical Laboratories,December 1988, pp.2, 16. 120.Optimized
2. 1Bay All -Membrane Composite 5 Bays All -Membrane Composite All Bays All-Membrane Composite Johnson, E.H.,andNeill, D. J.'AutomatedStructural OptimizationSystem (ASTROS),Volumeill - Applications Manual',AFWAL-TR-88-3028AI; Air ForceWright Aeronautical Laboratories,December 1988, pg. 136. Flexible