@article{ref1,
title="Evaluation of maximal and submaximal static muscle exertions",
journal="Human factors",
year="1981",
author="Kroemer, K. H. and Marras, W. S.",
volume="23",
number="6",
pages="643-653",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0018-7208",
doi="",
url="http://dx.doi.org/"
}