@article{ref1,
title="From the annual reports of the factory inspection of Nordrhein-Westfalen country for the years 1960-1965",
journal="Berufs-Dermatosen",
year="1967",
author="Gronemann, H.",
volume="15",
number="5",
pages="306-308",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0005-9498",
doi="",
url="http://dx.doi.org/"
}