@article{ref1,
title="Hunting down fatigue",
journal="AeroSafety world",
year="2012",
author="Werfelman, Linda",
volume="7",
number="",
pages="22-24",
abstract="Researchers credit a voluntary reporting system with detecting unsuspected source of fatigue.<p />",
language="",
issn="1934-4015",
doi="",
url="http://dx.doi.org/"
}