BibTex format
@article{Oulton:2013:10.1038/nphys2645,
author = {Oulton, RF and Pendry, JB},
doi = {10.1038/nphys2645},
journal = {NATURE PHYSICS},
pages = {323--324},
title = {NEGATIVE REFRACTION Imaging through the looking-glass},
url = {http://dx.doi.org/10.1038/nphys2645},
volume = {9},
year = {2013}
}