@INPROCEEDINGS {4532,
author={A. Topa and C. R. Paiva and A. Barbosa},
doi={},
booktitle={Encuentro Ibérico de Electromagnetismo Computacional - EIEC},
title={Assessment of the Effective Index Method in the Analysis of DNG Metamaterial Waveguides},
year={2007},
month={April},
volume={1},
pages={1-4} 
}
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