@article{ref1,
title="The effects of automobile exhaust on man",
journal="Revista de saude publica",
year="1974",
author="Colacioppo, S.",
volume="8",
number="2",
pages="235-243",
abstract="<p>[Abstract unavailable]</p><p>Language: pt</p>",
language="pt",
issn="0034-8910",
doi="",
url="http://dx.doi.org/"
}