1. Nayfeh, A.H.: Perturbation Methods. Wiley, NY (1973)
2. Carr, J.: Applications of Centre Manifold Theory. Springer, NY (1982)
3. Koiter, W.T.: On the Stability of Elastic Equilibrium. Ph.D. Thesis, Delft University of Technology, The Netherlands—NASA Technical Translation F-10 833, Washington (1967)
4. Budiansky, B.: Theory of buckling and post-buckling behavior of elastic structures. Adv. Appl. Mech. 14, 1–65 (1974)
5. Hutchinson, J.W., Koiter, W.T.: Postbuckling theory. Appl. Mech. Rev. 23, 1353–1366 (1970)