@article{ref1,
title="On the measurement of pilot perceptual workload: a comparison of assessment techniques addressing sensitivity and intrusion issues",
journal="Ergonomics",
year="1984",
author="Casali, J. G. and Wierwille, Walter W.",
volume="27",
number="10",
pages="1033-1050",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0014-0139",
doi="",
url="http://dx.doi.org/"
}