1. Augusti, G. (1964). Stabilità di strutture elastiche elementari in presenza di grandi spostamenti. Atti dell’Accademia delle Scienze Fisiche e Matematiche di Napoli, 4(5) (in Italian).
2. Batista, R. C., & Gonçalves, P. B. (1994). Non-linear lower bounds for shell buckling design. Journal of Constructional Steel Research, 28(2), 101–120.
3. Bazant, Z. P., & Cedolin, L. (1991). Stability of structures. Oxford: Oxford Press.
4. Boivin, N., Pierre, C., & Shaw, S. W. (1995). Nonlinear modal analysis of structural systems featuring internal resonances. Journal of Sound and Vibration, 182, 336–341.
5. Brush, D. O., & Almroth, B. O. (1975). Buckling of bars, plates and shells. New York: McGraw-Hill.