@article{ref1,
title="Study of pilots who have made multiple ejections",
journal="Aerospace medicine",
year="1970",
author="Smelsey, S. O.",
volume="41",
number="5",
pages="563-566",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0001-9402",
doi="",
url="http://dx.doi.org/"
}