Jiang , HaiyanLu , Tiao and Yin , Xu. (2020). A Hybrid Explicit-Implicit Scheme for the Time-Dependent Wigner Equation.
            <i>Journal of Computational Mathematics</i>. <i>39</i> (1).
            22-42.
         doi:10.4208/jcm.1906-m2018-0081