Jianfeng Chen,  Sha Liu,  Yong Wang &  Chengwen Zhong. (2020). A Compressible Conserved Discrete Unified Gas-Kinetic Scheme with Unstructured Discrete Velocity Space for Multi-Scale Jet Flow Expanding into Vacuum Environment.
            <i>Communications in Computational Physics</i>. <i>28</i> (4).
            1502-1535.
         doi:10.4208/cicp.OA-2020-0037