@article{ref1,
title="Proper selection and testing of laser protective materials",
journal="American journal of optometry and archives of American Academy of Optometry",
year="1973",
author="Holst, G. C.",
volume="50",
number="6",
pages="477-483",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-9408",
doi="",
url="http://dx.doi.org/"
}