Zhuo-Jia Fu,  Wen Chen & Qing-Hua Qin. (1970). Three Boundary Meshless Methods for Heat Conduction Analysis in Nonlinear FGMs with Kirchhoff and Laplace Transformation.
            <i>Advances in Applied Mathematics and Mechanics</i>. <i>4</i> (5).
            519-542.
         doi:10.4208/aamm.10-m1170