@article{ref1,
title="Check your oxygen",
journal="Aviation, space, and environmental medicine",
year="1982",
author="Ground, K. E.",
volume="53",
number="1",
pages="24-26",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0095-6562",
doi="",
url="http://dx.doi.org/"
}