@article{ref1,
title="A study on the visibility of aircraft insignia",
journal="Quarterly research report. USAF School of Aviation Medicine",
year="1948",
author="Haber, H. and Gerathewohl, S.",
volume="60",
number="",
pages="11-11",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="",
doi="",
url="http://dx.doi.org/"
}