@article{ref1,
title="Job-made guardrails: are they strong enough",
journal="Occupational health and safety",
year="2007",
author="Asfahl, C. Ray and Asfahl, Erica R.",
volume="76",
number="3",
pages="80, 82-80, 82",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0362-4064",
doi="",
url="http://dx.doi.org/"
}