@article{ref1,
title="Transparencies used in military aviation and their effects on vision",
journal="Journal of the American Optometric Association",
year="1971",
author="Provines, W. F. and Kislin, B.",
volume="42",
number="1",
pages="57-63",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0003-0244",
doi="",
url="http://dx.doi.org/"
}