@article{ref1,
title="Calming traffic on Bogota's killing streets",
journal="Science",
year="2008",
author="Cohen, John",
volume="319",
number="5864",
pages="742-743",
abstract="With humor, education, and tough laws, this Colombian city has dramatically reduced traffic injuries and deaths.  <p>Language: en</p>",
language="en",
issn="0036-8075",
doi="10.1126/science.319.5864.742",
url="http://dx.doi.org/10.1126/science.319.5864.742"
}