W. M. Lee and J. T. Chen, 2009, Free vibration analysis of a circular plate with multiple circular holes by using multiple Trefftz method, Computer Modeling in Engineering Science, Accepted. (proof) (final)

Eigensolutions of the Helmholtz equation for a multiply connected domain with circular boundaries using the multipole Trefftz method (proof) (in press) (final)

W. M. Lee and J. T. Chen, 2009, Scattering of flexural wave in thin plate with multiple circular holes by using the multiple Trefttz method, International Journal of Solids and Structures, Vol.47, pp.1118-1129. (final)