BibTex format
@article{Page:2015:10.1103/PhysRevB.91.075404,
author = {Page, AF and Ballout, F and Hess, O and Hamm, JM},
doi = {10.1103/PhysRevB.91.075404},
journal = {Physical Review B},
pages = {75404--75404},
title = {Nonequilibrium plasmons with gain in graphene},
url = {http://dx.doi.org/10.1103/PhysRevB.91.075404},
volume = {91},
year = {2015}
}