@INPROCEEDINGS {6335,
author={M. G. Silveirinha and C. A. Fernandes and J.R. Costa},
doi={},
booktitle={IEEE AP-S/URSI International Symp.},
title={Guided Waves in a Metamaterial Slab with Extreme Effective Parameters},
year={2008},
month={July},
volume={203.4},
pages={---} 
}