@article{ref1,
title="Necessity of a commentary to the 5th decree on the extension of accident insurance for occupational diseases",
journal="Zentralblatt fur Arbeitsmedizin und Arbeitsschutz",
year="1956",
author="Goralewski, G.",
volume="6",
number="6",
pages="136-138",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0044-4049",
doi="",
url="http://dx.doi.org/"
}