@article{ref1,
title="Fatal carbon monoxide poisoning in well digging",
journal="Pracovni Lekarstvi",
year="1954",
author="Berka, I.",
volume="6",
number="5",
pages="301-301",
abstract="<p>[Abstract unavailable]</p><p>Language: cs</p>",
language="cs",
issn="0032-6291",
doi="",
url="http://dx.doi.org/"
}