@article{ref1,
title="Preventive maintenance programs help stop shut-downs, accidents",
journal="Occupational health and safety",
year="1987",
author="Burton, D. J.",
volume="56",
number="1",
pages="82-83",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0362-4064",
doi="",
url="http://dx.doi.org/"
}