@article{ref1,
title="Fatigue and Sleep Debt in an Operational Navy Squadron",
journal="International journal of aviation psychology",
year="2005",
author="Hardaway, Christina A. and Gregory, Kevin B.",
volume="15",
number="2",
pages="157-171",
abstract="[Abstract unavailable]  <p>Language: en</p>",
language="en",
issn="1050-8414",
doi="10.1207/s15327108ijap1502_3",
url="http://dx.doi.org/10.1207/s15327108ijap1502_3"
}