@article{ref1,
title="Health and fire protection in photogravure printing",
journal="Zentralblatt fur Arbeitsmedizin und Arbeitsschutz",
year="1955",
author="Krug, R. and Bunnemann, W.",
volume="63",
number="Beih. 1",
pages="1-62",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0044-4049",
doi="",
url="http://dx.doi.org/"
}