Zhang , Danni and Guo , Ruihan. (2023). Optimal Error Estimates of the Semi-Discrete Local Discontinuous Galerkin Method and Exponential Time Differencing Schemes for the Thin Film Epitaxy Problem Without Slope Selection.
            <i>Advances in Applied Mathematics and Mechanics</i>. <i>15</i> (3).
            545-567.
         doi:10.4208/aamm.OA-2021-0204