@ARTICLE {3018,
author={M. G. Silveirinha and C. A. Fernandes},
doi={10.1103/PhysRevB.78.033108},
journal={Physical Review B},
title={Nonresonant Structured Material with Extreme Effective Parameters},
year={2008},
month={July},
volume={78},
number={033108},
pages={1-4},
ISSN={2469-9950}
}