Wakana Iwakami, Yuzuru Yatagai, Nozomu Hatakeyama & Yuji Hattori. (2020). A New Approach for Error Reduction in the Volume Penalization Method.
            <i>Communications in Computational Physics</i>. <i>16</i> (5).
            1181-1200.
         doi:10.4208/cicp.220513.070514a