@article{ref1,
title="Progress toward achieving the 1990 objectives in occupational safety and health",
journal="MMWR: Morbidity and mortality weekly report",
year="1987",
author="",
volume="36",
number="37",
pages="620-2, 627",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0149-2195",
doi="",
url="http://dx.doi.org/"
}