1. Fractional calculus-a different approach to the analysis of viscoelastically damped structures;Bagley;AIAA Journal,1983
2. Ciambella J. Paolone A. Vidoli S. Dynamic Behavior of Viscoelastic Solids at Low Frequency: Fractional vs Exponential Relaxation 1 5 E. Viola S. de Miranda G. Castellazzi 2011