1. J. T. Chen, Dual BEM since 1986, Chapter 8 in the book of ``Advances in Computational Mechanics, Nova, 2009.

2. J. T. Chen, Y. T. Lee and W. M. Lee, 2009, A semi-analytical approach for boundary value problems with circular boundaries, in the Chapter 3 of book of Recent Advances in Boundary Methods: A Volume to Honor Professor Dimitri Beskos, edited by G. D. Manolis and D. Polyzos, Springer-Verlag, pp.29-42.