Yuan , YirangCheng , AijieLi , ChangfengSun , Tongjun and Yang , Qing. (2019). A Characteristics-Mixed Volume Element Method for the Displacement Problem of Enhanced Oil Recovery.
            <i>Advances in Applied Mathematics and Mechanics</i>. <i>11</i> (5).
            1084-1113.
         doi:10.4208/aamm.OA-2018-0205