@article{ref1,
title="Mine safety experts aim for 'zero fatalities'",
journal="Occupational health and safety",
year="1993",
author="Smith, R. B.",
volume="62",
number="4",
pages="20-4, 29",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0362-4064",
doi="",
url="http://dx.doi.org/"
}