@article{ref1,
title="On the problems of safety for conveyor belts",
journal="Zentralblatt fur Arbeitsmedizin und Arbeitsschutz",
year="1965",
author="Pistulka, G.",
volume="15",
number="9",
pages="223-225",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0044-4049",
doi="",
url="http://dx.doi.org/"
}