@article{ref1,
title="An adaptive vigilance task with knowledge of results",
journal="Human factors",
year="1974",
author="Wiener, E. L.",
volume="16",
number="4",
pages="333-338",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0018-7208",
doi="",
url="http://dx.doi.org/"
}