@article{ref1,
title="Major hazard control",
journal="Polish journal of occupational medicine",
year="1988",
author="",
volume="1",
number="4",
pages="369-369",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0860-6536",
doi="",
url="http://dx.doi.org/"
}