@article{ref1,
title="Development and results of the health protection of workers in Berlin industries",
journal="Zeitschrift fur die Gesamte Hygiene und Ihre Grenzgebiete",
year="1988",
author="Kreibich, H. and Schulz, G.",
volume="34",
number="2",
pages="90-93",
abstract="<p>[Abstract unavailable]</p> <p>Language: de</p>",
language="de",
issn="0049-8610",
doi="",
url="http://dx.doi.org/"
}