@INPROCEEDINGS {5068,
author={N. Engheta and A Alù and M. G. Silveirinha and J. Li and A. Salandrino and  Edwards},
doi={},
booktitle={SPIE Optics and Photonics},
title={Plasmonic Metamaterials: The Tale of two Phenomena},
year={2007},
month={August},
volume={6638},
pages={4-4} 
}