@article{ref1,
title="Policies for controlling air pollution from road traffic",
journal="IATSS research",
year="1988",
author="Hamanaka, H",
volume="12",
number="1",
pages="54-60",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0386-1112",
doi="",
url="http://dx.doi.org/"
}