BibTex format
@article{Graham:2019:10.1371/journal.pone.0221267,
author = {Graham, D and Niak, C and McCoy, EJ and Li, H},
doi = {10.1371/journal.pone.0221267},
journal = {PLoS One},
title = {Do speed cameras reduce road traffic collisions?},
url = {http://dx.doi.org/10.1371/journal.pone.0221267},
volume = {14},
year = {2019}
}