@article{ref1,
title="A psychophysical approach to estimating endurance in performing physically demanding work",
journal="Human factors",
year="1978",
author="Wardle, M. G. and Gloss, D. S.",
volume="20",
number="6",
pages="745-747",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0018-7208",
doi="",
url="http://dx.doi.org/"
}