1. Numerical Methods in Finite Element Analysis;Bathe,1976
2. Infinite elements;Bettess;Internat. J. Numer. Methods Engrg.,1977
3. The Finite Element Method;Zienkiewicz,1977
4. Boundary integral equation method: Computational applications in applied mechanics;Cruse;ASME AMDII,1975
5. The Boundary Element Method for Engineers;Brebbia,1978