Yonggui Yan, Zhi-Zhong Sun & Jiwei Zhang. (2020). Fast Evaluation of the Caputo Fractional Derivative and Its Applications to Fractional Diffusion Equations: A Second-Order Scheme.
            <i>Communications in Computational Physics</i>. <i>22</i> (4).
            1028-1048.
         doi:10.4208/cicp.OA-2017-0019