@article{ref1,
title="Phase shifts of the human circadian system and performance deficit during the periods of transition: I. East-west flight",
journal="Aerospace medicine",
year="1966",
author="Hauty, G. T. and Adams, T.",
volume="37",
number="7",
pages="668-674",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0001-9402",
doi="",
url="http://dx.doi.org/"
}