@article{ref1,
title="Aircraft accident investigation",
journal="Aviation, space, and environmental medicine",
year="1993",
author="Ungs, T. J.",
volume="64",
number="5",
pages="417-417",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0095-6562",
doi="",
url="http://dx.doi.org/"
}