BibTex format
@article{Dowker:2010:10.1103/PhysRevD.82.104048,
author = {Dowker, F and Henson, J and Sorkin, RD},
doi = {10.1103/PhysRevD.82.104048},
journal = {PHYSICAL REVIEW D},
title = {Discreteness and the transmission of light from distant sources},
url = {http://dx.doi.org/10.1103/PhysRevD.82.104048},
volume = {82},
year = {2010}
}