@article{ref1,
title="Investigations of the optimal characteristics of visual light indicator systems",
journal="Journal of aviation medicine",
year="1957",
author="Noble, R. and Lazo, J.",
volume="28",
number="3",
pages="318-321",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0095-991X",
doi="",
url="http://dx.doi.org/"
}