Li , ShuangshuangWang , Lina and Yi , Lijun. (2020). An $hp$-Version of $C^0$ -Continuous Petrov-Galerkin Time-Stepping Method for Second-Order Volterra Integro-Differential Equations with Weakly Singular Kernels.
            <i>East Asian Journal on Applied Mathematics</i>. <i>11</i> (1).
            20-42.
         doi:10.4208/eajam.020520.120620