@article{ref1,
title="Fatigue problems in modern industry",
journal="Ergonomics",
year="1971",
author="Cameron, C.",
volume="14",
number="6",
pages="713-720",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0014-0139",
doi="",
url="http://dx.doi.org/"
}