Hui Xie, Li Liu, Chuanlei Zhai, Xuejun Xu & Heng Yong. (2024). A Conservative and Positivity-Preserving Method for Solving Anisotropic Diffusion Equations with Deep Learning.
            <i>Communications in Computational Physics</i>. <i>35</i> (2).
            467-497.
         doi:10.4208/cicp.OA-2023-0180