@INPROCEEDINGS {68,
author={A. Topa and C. R. Paiva and A. Barbosa},
doi={},
booktitle={International Conf. on Electromagnetics in Advanced Applications - ICEAA},
title={Complex Spectrum of Planar Omega Structures},
year={2001},
month={September},
volume={1},
pages={719-722} 
}