Fan Zhang, Hansong Tang, Jian Cheng and Tiegang Liu. (2018). A Simplified Artificial Compressibility Flux for the Discontinuous Galerkin Solution of the Incompressible Navier-Stokes Equations.
            <i>Communications in Computational Physics</i>. <i>25</i> (4).
            988-1009.
         doi:10.4208/cicp.OA-2018-0051