2Nayroles B, Touzot G, Villon P. Generalizing the finite element method. Diffuse approximation and Diffuse elements [J]. Computer Mech., 1992, 10:307-318.
3Belytschko T, Lu Y Y, Gu L. Element-free Galerkin methods[J]. Int. J. for Num. Methods in Eng., 1994, 37:229-256.
4Lu Y Y, Belytschko T, Gu L. A new implementation of the element-free Galerkin method[J]. Comput methods Appl. Mech. Engrg, 1994, 113: 397-414.
5Kryl P, Belytschko T. Analysis of thin plates by the element-free Galerkin method[J]. Comput Mech, 1995,17: 26-35.