Weimin Han, Ziping Huang, Cheng Wang & Wei Xu. (2019). Numerical Analysis of Elliptic Hemivariational Inequalities for Semipermeable Media.
            <i>Journal of Computational Mathematics</i>. <i>37</i> (4).
            506-523.
         doi:10.4208/jcm.1807-m2018-0035