@article{ref1,
title="Grip strength, level of endurance, and manual task performance",
journal="Journal of applied psychology",
year="1972",
author="Pfitzer, J. T. and Ellis, N. C. and Johnston, W. L.",
volume="56",
number="3",
pages="278-280",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0021-9010",
doi="",
url="http://dx.doi.org/"
}