Shuai Su & Jiming Wu. (2019). A Vertex-Centered and Positivity-Preserving  Finite Volume  Scheme  for Two-Dimensional Three-Temperature Radiation Diffusion Equations  on General  Polygonal Meshes.
            <i>Numerical Mathematics: Theory, Methods and Applications</i>. <i>13</i> (1).
            220-252.
         doi:10.4208/nmtma.OA-2018-0121