@article{ref1,
title="Various comments on the noise produced by vehicles",
journal="Salud publica de Mexico",
year="1974",
author="Márquez Mayaudón, E.",
volume="16",
number="5",
pages="771-773",
abstract="<p>[Abstract unavailable]</p><p>Language: es</p>",
language="es",
issn="0036-3634",
doi="",
url="http://dx.doi.org/"
}