@article{ref1,
title="Evaluation of auditory, visual, and dual-mode displays for prolonged sonar monitoring in repeated sessions",
journal="Human factors",
year="1975",
author="Colquhoun, W. P.",
volume="17",
number="5",
pages="425-437",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0018-7208",
doi="",
url="http://dx.doi.org/"
}