@article{ref1,
title="Prescription sunglasses",
journal="American journal of optometry and archives of American Academy of Optometry",
year="1969",
author="Davis, J. K. and Fernald, H. G.",
volume="46",
number="8",
pages="572-577",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-9408",
doi="",
url="http://dx.doi.org/"
}