@article{ref1,
title="The efficacy of some auditory-vocal subsidiary tasks as measures of the mental load on male and female drivers",
journal="Ergonomics",
year="1981",
author="Wetherell, A.",
volume="24",
number="3",
pages="197-214",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0014-0139",
doi="",
url="http://dx.doi.org/"
}