@article{ref1,
title="An investigation into the effects of knowledge of results on operator performance",
journal="Ergonomics",
year="1974",
author="Leamon, T. B.",
volume="17",
number="5",
pages="639-650",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0014-0139",
doi="",
url="http://dx.doi.org/"
}