Tianliang Hou, Chunmei Liu, Chunlei Dai, Luoping Chen & Yin Yang. (2022). Two-Grid Algorithm of $H^{1}$-Galerkin Mixed Finite Element Methods for Semilinear Parabolic Integro-Differential Equations.
            <i>Journal of Computational Mathematics</i>. <i>40</i> (5).
            667-685.
         doi:10.4208/jcm.2101-m2019-0159