Rongpei Zhang, Xijun Yu, Xia Cui, Xiaohan Long and Tao Feng. (2013). A New Discontinuous Galerkin Method for Parabolic Equations with Discontinuous Coefficient.
            <i>Numerical Mathematics: Theory, Methods and Applications</i>. <i>6</i> (2).
            325-342.
         doi:10.4208/nmtma.2013.y11038