BibTex format
@article{McCoy:2014:10.1080/01621459.2014.956871,
author = {McCoy, EJ and Graham, DJ and Stephens, DA},
doi = {10.1080/01621459.2014.956871},
journal = {Journal of the American Statistical Association},
title = {Quantifying causal effects of road network capacity expansions on traffic volume and density via a mixed model propensity score estimator},
url = {http://dx.doi.org/10.1080/01621459.2014.956871},
volume = {109},
year = {2014}
}