Jingna Zhang, Temirkhan S. Aleroev, Yifa Tang & Jianfei Huang. (1970). Numerical Schemes for Time-Space Fractional Vibration Equations.
            <i>Advances in Applied Mathematics and Mechanics</i>. <i>13</i> (4).
            806-826.
         doi:10.4208/aamm.OA-2020-0066