@article{ref1,
title="Noxious gases in aviation",
journal="La Semana Médica",
year="1955",
author="Agrelo, R. and Gardella, V. P.",
volume="107",
number="2",
pages="60-74",
abstract="<p>[Abstract unavailable]</p><p>Language: es</p>",
language="es",
issn="0370-9590",
doi="",
url="http://dx.doi.org/"
}