BibTex format
@article{Hickling:2016:4/045009,
author = {Hickling, A and Wiseman, T},
doi = {4/045009},
journal = {CLASSICAL AND QUANTUM GRAVITY},
title = {Vacuum energy is non-positive for (2+1)-dimensional holographic CFTs},
url = {http://dx.doi.org/10.1088/0264-9381/33/4/045009},
volume = {33},
year = {2016}
}