@article{ref1,
title="Night vision and mild hypoxia",
journal="Aerospace medicine",
year="1967",
author="Pierson, W. R.",
volume="38",
number="10",
pages="993-994",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0001-9402",
doi="",
url="http://dx.doi.org/"
}