@INPROCEEDINGS {13917,
author={D. E. Fernandes and M. G. Silveirinha and N. Engheta},
doi={0},
booktitle={Metamorphose International Congress on Advanced Electromagnetic Materials in Microwaves and Optics - METAMATERIALS},
title={Negative refraction and perfect tunneling of electron waves in graphene superlattices},
year={2013},
month={September},
volume={1},
pages={1-3} 
}