Gu , YanFan , Chia-Ming and Fu , Zhuojia. (2021). Localized Method of Fundamental Solutions for Three-Dimensional Elasticity Problems: Theory.
            <i>Advances in Applied Mathematics and Mechanics</i>. <i>13</i> (6).
            1520-1534.
         doi:10.4208/aamm.OA-2020-0134