@article{ref1,
title="A task difficulty--G stress experiment",
journal="Ergonomics",
year="1984",
author="Repperger, Daniel W. and Rogers, D. B. and Frazier, J. W. and Hudson, K. E.",
volume="27",
number="2",
pages="161-176",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0014-0139",
doi="",
url="http://dx.doi.org/"
}