@article{ref1,
title="Simple calculator for determining the physiological rest period after jet flights involving time zone shifts",
journal="Aerospace medicine",
year="1974",
author="Gerathewohl, S. J.",
volume="45",
number="4",
pages="449-450",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0001-9402",
doi="",
url="http://dx.doi.org/"
}