1. Test Development of Structures Designed Under Strength;Meyer;Aero. Eng. Rev.,1954
2. Structural Efficiencies of Various Aluminum, Titanium, and Steel Alloys at Elevated Temperatures;Heimerl;NACA TN 2975,1953
3. Aircraft Materials from the Designer's Point of View;Russell,1949
4. Relative Structural Efficiencies of Flat Balsa Core Sandwich and Stiffened Panel Construction;Hubka;NACA TN 2514,1951
5. Structures of Minimum Weight;Cox,1948