@article{ref1,
title="Engineering safety standard of radiation",
journal="New York state dental journal",
year="1977",
author="Benhuri, M. N. and Ugural, A. C.",
volume="43",
number="10",
pages="594-596",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0028-7571",
doi="",
url="http://dx.doi.org/"
}