Xu , Maoyuan and Xie , Xiaoping. (2021). An Efficient Feature-Preserving Image Denoising Algorithm Based on a Spatial-Fractional Anisotropic Diffusion Equation.
            <i>East Asian Journal on Applied Mathematics</i>. <i>11</i> (4).
            788-807.
         doi:10.4208/eajam.081220.270421