@article{ref1,
title="Monitoring of complex visual display: v. effects of repeated sessions and heavy visual load on human vigilance",
journal="Human factors",
year="1963",
author="Adams, Julie A. and Humes, J. M. and Sieveking, N. A.",
volume="5",
number="",
pages="385-389",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0018-7208",
doi="",
url="http://dx.doi.org/"
}