@article{ref1,
title="Evaluation of exposure data in the beryllium registry; their relation to present maximum allowable concentrations",
journal="AMA archives of industrial health",
year="1959",
author="Williams, C. R.",
volume="19",
number="2",
pages="263-267",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0567-3933",
doi="",
url="http://dx.doi.org/"
}