@article{ref1,
title="Work and stress. The limits of the human body in physical effort",
journal="Nederlands Tijdschrift voor Geneeskunde",
year="1981",
author="Kuipers, H.",
volume="125",
number="41",
pages="1657-1659",
abstract="<p>[Abstract unavailable]</p><p>Language: nl</p>",
language="nl",
issn="0028-2162",
doi="",
url="http://dx.doi.org/"
}