@article{ref1,
title="Heart rate and performance in manual missile guidance",
journal="Perceptual and motor skills",
year="1971",
author="Bergstroem, B. and Arnberg, P.",
volume="32",
number="2",
pages="352-354",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0031-5125",
doi="",
url="http://dx.doi.org/"
}