@article{articledd6a1912,
title   = {Robustness of bipartite Gaussian entangled beams propagating in lossy channels},
author = {Barbosa, F A S and Coelho, A S and Faria, A J and Cassemiro, Katiuscia Nadyne and Villar, A S and Nussenzveig, Paulo Alberto and Martinelli, Marcelo},
year = {2010},
doi = {10.1038/nphoton.2010.222},
journal   = {Nature Photonics}
}