@ARTICLE {3185,
author={M. G. Silveirinha and C. A. Fernandes and J.R. Costa and C. R. Medeiros},
doi={10.1063/1.3012373},
journal={Applied Physics Letters},
title={Experimental Demonstration of a Structured Material with Extreme Effective Parameters at Microwaves},
year={2008},
month={October},
volume={93},
number={174103},
pages={1-3},
ISSN={1077-3118}
}