@article{ref1,
title="Motor performance under stress: a test of the inverted-U hypothesis",
journal="Journal of personality and social psychology",
year="1970",
author="Martens, R. and Landers, D. M.",
volume="16",
number="1",
pages="29-37",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0022-3514",
doi="",
url="http://dx.doi.org/"
}