@article{ref1,
title="Mathematical evaluation for controlling hazards",
journal="Journal of safety research",
year="1971",
author="Fine, W. T.",
volume="3",
number="4",
pages="157-166",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0022-4375",
doi="",
url="http://dx.doi.org/"
}