@article{ref1,
title="Danger of drilling into sealed and filled plow frames",
journal="American journal of industrial medicine",
year="1999",
author="Zlochower, I. A. and Ehlers, J. J.",
volume="",
number="Suppl 1",
pages="110-112",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0271-3586",
doi="",
url="http://dx.doi.org/"
}