Feng , XiaobingLiu , Hailiang and Ma , Shu. (2019). Mass- and Energy-Conserved Numerical Schemes for Nonlinear Schrödinger Equations.
            <i>Communications in Computational Physics</i>. <i>26</i> (5).
            1365-1396.
         doi:10.4208/cicp.2019.js60.05