1. A. A. Kilbas, H. M. Srivastava, J. J. Trujillo, Theory and applications of fractional differential equations elsevier science, Elsevier, 2006.
2. K. S. Miller, B. Ross, An introduction to the fractional calculus and fractional differential equations, Wiley, 1993.
3. V. E. Tarasov, Fractional dynamics: applications of fractional calculus to dynamics of particles, fields and media, Springer Science & Business Media, 2011.
4. J. Padovan, J. T. Sawicki, Nonlinear vibrations of fractionally damped systems, Nonlinear Dyn, 16 (1998), 321–336. https://doi.org/10.1023/A:1008289024058
5. L. J. Sheu, H. K. Chen, J. H. Chen, Chaotic dynamics of the fractionally damped Duffing equation, Chaos, Solitons, Fractals, 32 (2007), 1459–1468. https://doi.org/10.1016/j.chaos.2005.11.066