@ARTICLE {94, author={A. Topa and C. R. Paiva and A. Barbosa}, doi={}, journal={AEU - International Journal of Electronics and Communications}, title={Least Squares Boundary Residual Method for the Analysis of Step Discontinuities in Open Chiral Waveguides}, year={2001}, month={July}, volume={55}, number={4}, pages={281-291}, ISSN={1434-8411} }