@article{ref1,
title="An analysis of three years' casualty statistics record of coal mines plant",
journal="Sante Publique (Ed Medicala)",
year="1986",
author="Buda, J. and Pál, T. and Novetzki, J.",
volume="29",
number="3-4",
pages="241-245",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0048-9107",
doi="",
url="http://dx.doi.org/"
}