@article{ref1,
title="A hidden pipe ditch as a cause of blast foreman's accident",
journal="Zentralblatt fur Arbeitsmedizin und Arbeitsschutz",
year="1966",
author="Duddek, W.",
volume="16",
number="11",
pages="325-327",
abstract="<p>[Abstract unavailable]</p> <p>Language: de</p>",
language="de",
issn="0044-4049",
doi="",
url="http://dx.doi.org/"
}