BibTex format
@article{Benincasa:2010:10.1103/PhysRevLett.104.181301,
author = {Benincasa, DMT and Dowker, F},
doi = {10.1103/PhysRevLett.104.181301},
journal = {PHYSICAL REVIEW LETTERS},
title = {Scalar Curvature of a Causal Set},
url = {http://dx.doi.org/10.1103/PhysRevLett.104.181301},
volume = {104},
year = {2010}
}