1. Brebbia, C.A. and Walker, S. Boundary Element Method, Pentech Press, London 1980.
2. Banerjee, P.K. and Butterfìeld, R. Boundary Element Methods in Engineering Science, Mc-Graw Hill, London, 1981.
3. Brebbia, C.A., Telles, J.C.F. and Wrobel, L.C. Boundary Element Methods, Springer Verlag, New York, 1984.
4. Hromadka II, T.V. and Guymon G.L. A Complex Variable Boundary Element Method: Development, International Journal of Numerical Methods in Engineering, Vol. 20, pp. 25 - 37, 1984.
5. Hromadka II, T.V., Guymon, G.L. and Yen, C.C. The Complex Variable Boundary Element Method: Applications, International Journal for Numerical Methods in Engineering, Vol. 21, pp. 1013 - 1025, 1985.