Eric Bonnetier, Faouzi Triki & Chun-Hsiang Tsou. (2019). Eigenvalues of the Neumann-Poincaré Operator for Two Inclusions with Contact of Order $m$:  A Numerical Study.
            <i>Journal of Computational Mathematics</i>. <i>36</i> (1).
            17-28.
         doi:10.4208/jcm.1607-m2016-0543