BibTex format
@article{Brody:2012:10.1103/PhysRevLett.109.230405,
author = {Brody, DC and Graefe, E-M},
doi = {10.1103/PhysRevLett.109.230405},
journal = {PHYSICAL REVIEW LETTERS},
title = {Mixed-State Evolution in the Presence of Gain and Loss},
url = {http://dx.doi.org/10.1103/PhysRevLett.109.230405},
volume = {109},
year = {2012}
}