@ARTICLE {4109,
author={M. G. Silveirinha and C. R. Medeiros and C. A. Fernandes and J.R. Costa},
doi={10.1103/PhysRevB.81.033101},
journal={Physical Review B - Condensed Matter and Materials Physics},
title={Experimental verification of broadband superlensing using a metamaterial with an extreme index of refraction},
year={2010},
month={January},
volume={81},
number={033101},
pages={1-4},
ISSN={2469-9950}
}