X. Lv, Y. Zhao, X. Y. Huang, G. H. Xia and X. H. Su. (2008). An Efficient Parallel/Unstructured-Multigrid Implicit Method for Simulating 3D Fluid-Structure Interaction.
            <i>Communications in Computational Physics</i>. <i>4</i> (2).
            350-377.
         doi: