@INPROCEEDINGS {7889,
author={M. G. Silveirinha and C. A. Fernandes and J.R. Costa and C. R. Medeiros},
doi={},
booktitle={IEEE AP-S/URSI International Symp.},
title={Experimental Demonstration of a Metamaterial with Extreme Index of Refraction at Microwaves},
year={2009},
month={June},
volume={-},
pages={---} 
}