1. Nayfeh A, Mook D (1979) Nonlinear Oscillations, In: Pure and applied mathematics. A Wiley Series of Texts, Monographs and Tracts, Wiley
2. Thomsen JJ (2003) Vibrations and stability. Advanced theory, analysis and tools, 2nd edn. Springer, Berlin, Heidelberg
3. Strogatz S (2014) Nonlinear dynamics and chaos, with applications to physics, biology, chemistry and engineering, 2nd edn. Westview Press, New-York
4. Nayfeh AH (2000) Nonlinear interactions: analytical, computational, and experimental methods. Wiley
5. Nayfeh SA, Nayfeh AH (1993) Nonlinear intercations between two widely spaced modes: external excitation. Int J Bifurc Chaos 3(2):417–427