@article{ref1,
title="Value and lack of value of hazard and aggravation payment from the viewpoint of industrial hygiene",
journal="Zentralblatt fur Arbeitsmedizin und Arbeitsschutz",
year="1968",
author="Schürmann, D. and Maerz, K.",
volume="18",
number="11",
pages="333-336",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0044-4049",
doi="",
url="http://dx.doi.org/"
}