BibTex format
@inproceedings{Schikowski:2013,
author = {Schikowski, T and Adam, M and Cai, Y and et, al},
publisher = {Environ Health Perspect},
title = {Association between long-term exposure to traffic-related air pollution and COPD},
url = {http://ehp.niehs.nih.gov/ehbasel13/o-3-09-03/},
year = {2013}
}