Nonlinear analysis and analog simulation of a piezoelectric buckled beam with fractional derivativeI. S. Mokem Fokou, C. Nono Dueyou Buckjohn, M. Siewe Siewe and C. TchawouaEur. Phys. J. Plus, 132 8 (2017) 344DOI: https://doi.org/10.1140/epjp/i2017-11605-7