1. Ashley, H. and Landahl, M., Aerodynamics of wing and Bodies, Addison-Wesley, 1965.
2. Savant, Jr., C.J., Basic Feedback Control System Design, McGraw-Hill, 1958.
3. Timoshenko, S.P., and Gere, J., Theory of Elastic Stability, McGraw-Hill, 1961.
4. Woodcock, D.L., “Structural Non-linearities”, Vol. I, Chapter 6, AGARD Manual on Aeroelasticity.
5. Housner, G.W., and Vreeland, T., Jr., The Analysis of Stress and Deformation, The MacMillan Co., 1966.