@article{ref1,
title="Effective exposure control",
journal="Occupational health and safety",
year="2004",
author="Sayer, Steven M.",
volume="73",
number="4",
pages="69-70, 84",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0362-4064",
doi="",
url="http://dx.doi.org/"
}