Yang , LeiShen , YedanHu , Zhicheng and Hu , Guanghui. (2020). An Implicit Solver for the Time-Dependent Kohn-Sham Equation.
            <i>Numerical Mathematics: Theory, Methods and Applications</i>. <i>14</i> (1).
            261-284.
         doi:10.4208/nmtma.OA-2020-0040