@article{ref1,
title="Early signaling of mine fires with the aid of carbon monoxide studies. II",
journal="Zentralblatt fur Arbeitsmedizin und Arbeitsschutz",
year="1957",
author="Kreybig, L. and Pinter, S.",
volume="7",
number="12",
pages="297-301",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0044-4049",
doi="",
url="http://dx.doi.org/"
}