@article{ref1,
title="Effects of tinted ophthalmic media on the detection and recognition of red signal light",
journal="Aerospace medicine",
year="1968",
author="Clark, B. A.",
volume="39",
number="11",
pages="1198-1205",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0001-9402",
doi="",
url="http://dx.doi.org/"
}